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12331121330 = 2511236179901
BaseRepresentation
bin10110111101111110…
…11111101010110010
31011211101011212102102
423132333133222302
5200223231340310
65355334420402
7614401542023
oct133677375262
934741155372
1012331121330
115258661a70
122481801702
13121693aac8
1484d9b2c4a
154c287a8a5
hex2defdfab2

12331121330 has 64 divisors (see below), whose sum is σ = 25681142016. Its totient is φ = 4218720000.

The previous prime is 12331121321. The next prime is 12331121357. The reversal of 12331121330 is 3312113321.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 114380 + ... + 194280.

It is an arithmetic number, because the mean of its divisors is an integer number (401267844).

Almost surely, 212331121330 is an apocalyptic number.

12331121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12331121330 is an abundant number, since it is smaller than the sum of its proper divisors (13350020686).

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

12331121330 is a wasteful number, since it uses less digits than its factorization.

12331121330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80003.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 12331121330 its reverse (3312113321), we get a palindrome (15643234651).

The spelling of 12331121330 in words is "twelve billion, three hundred thirty-one million, one hundred twenty-one thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 23 46 55 61 110 115 122 230 253 305 506 610 671 1265 1342 1403 2530 2806 3355 6710 7015 14030 15433 30866 77165 79901 154330 159802 399505 799010 878911 1757822 1837723 3675446 4394555 4873961 8789110 9188615 9747922 18377230 20214953 24369805 40429906 48739610 53613571 101074765 107227142 112101103 202149530 224202206 268067855 536135710 560505515 1121011030 1233112133 2466224266 6165560665 12331121330