12331321100 has 72 divisors (see below), whose sum is σ = 32191272960. Its totient is φ = 4005357120.

The previous prime is 12331321061. The next prime is 12331321103. The reversal of 12331321100 is 112313321.

It is a super-2 number, since 2×12331321100² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12331321103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 450284 + ... + 476883.

Almost surely, 2^12331321100 is an apocalyptic number.

12331321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12331321100 is an abundant number, since it is smaller than the sum of its proper divisors (19859951860).

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

12331321100 is a wasteful number, since it uses less digits than its factorization.

12331321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 927207 (or 927200 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12331321100 its reverse (112313321), we get a palindrome (12443634421).

The spelling of 12331321100 in words is "twelve billion, three hundred thirty-one million, three hundred twenty-one thousand, one hundred".