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12331054230 = 23511613971543
BaseRepresentation
bin10110111101111110…
…01111010010010110
31011211101001110101020
423132333033102112
5200223222213410
65355333142010
7614401142265
oct133677172226
934741043336
1012331054230
115258616610
12248178a906
1312169163c1
1484d9965dc
154c2865a70
hex2defcf496

12331054230 has 128 divisors (see below), whose sum is σ = 32918178816. Its totient is φ = 2931033600.

The previous prime is 12331054213. The next prime is 12331054237. The reversal of 12331054230 is 3245013321.

It is a self number, because there is not a number n which added to its sum of digits gives 12331054230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331054237) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7990839 + ... + 7992381.

It is an arithmetic number, because the mean of its divisors is an integer number (257173272).

Almost surely, 212331054230 is an apocalyptic number.

12331054230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12331054230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16459089408).

12331054230 is an abundant number, since it is smaller than the sum of its proper divisors (20587124586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12331054230 is a wasteful number, since it uses less digits than its factorization.

12331054230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022.

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 12331054230 its reverse (3245013321), we get a palindrome (15576067551).

The spelling of 12331054230 in words is "twelve billion, three hundred thirty-one million, fifty-four thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 61 66 110 122 165 183 305 330 366 397 610 671 794 915 1191 1342 1543 1830 1985 2013 2382 3086 3355 3970 4026 4367 4629 5955 6710 7715 8734 9258 10065 11910 13101 15430 16973 20130 21835 23145 24217 26202 33946 43670 46290 48434 50919 65505 72651 84865 94123 101838 121085 131010 145302 169730 188246 242170 254595 266387 282369 363255 470615 509190 532774 564738 612571 726510 799161 941230 1035353 1225142 1331935 1411845 1598322 1837713 2070706 2663870 2823690 3062855 3106059 3675426 3995805 5176765 6125710 6212118 6738281 7991610 9188565 10353530 13476562 15530295 18377130 20214843 31060590 33691405 37366831 40429686 67382810 74733662 101074215 112100493 186834155 202148430 224200986 373668310 411035141 560502465 822070282 1121004930 1233105423 2055175705 2466210846 4110351410 6165527115 12331054230