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3123012013230 = 2352317212629927
BaseRepresentation
bin101101011100100010000…
…001011000110010101110
3102001120001002002000100010
4231130202001120302232
5402131412033410410
610350405241514050
7441426102055134
oct55344201306256
912046032060303
103123012013230
11aa4509956a2a
124253164a2926
13198663a46805
14ab224291754
1556383d62c20
hex2d722058cae

3123012013230 has 64 divisors (see below), whose sum is σ = 7825655835648. Its totient is φ = 796131198720.

The previous prime is 3123012013193. The next prime is 3123012013237. The reversal of 3123012013230 is 323102103213.

It is a junction number, because it is equal to n+sod(n) for n = 3123012013197 and 3123012013206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123012013237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 127474 + ... + 2502453.

It is an arithmetic number, because the mean of its divisors is an integer number (122275872432).

Almost surely, 23123012013230 is an apocalyptic number.

3123012013230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3123012013230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3912827917824).

3123012013230 is an abundant number, since it is smaller than the sum of its proper divisors (4702643822418).

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

3123012013230 is a wasteful number, since it uses less digits than its factorization.

3123012013230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2631681.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 3123012013230 its reverse (323102103213), we get a palindrome (3446114116443).

The spelling of 3123012013230 in words is "three trillion, one hundred twenty-three billion, twelve million, thirteen thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 23 30 46 69 115 138 230 345 690 1721 3442 5163 8605 10326 17210 25815 39583 51630 79166 118749 197915 237498 395830 593745 1187490 2629927 5259854 7889781 13149635 15779562 26299270 39448905 60488321 78897810 120976642 181464963 302441605 362929926 604883210 907324815 1814649630 4526104367 9052208734 13578313101 22630521835 27156626202 45261043670 67891565505 104100400441 135783131010 208200800882 312301201323 520502002205 624602402646 1041004004410 1561506006615 3123012013230