12431332100 has 72 divisors (see below), whose sum is σ = 30707909568. Its totient is φ = 4323932800.

The previous prime is 12431332099. The next prime is 12431332129. The reversal of 12431332100 is 123313421.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 220379 + ... + 270978.

It is an arithmetic number, because the mean of its divisors is an integer number (426498744).

Almost surely, 2^12431332100 is an apocalyptic number.

12431332100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12431332100 is an abundant number, since it is smaller than the sum of its proper divisors (18276577468).

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

12431332100 is a wasteful number, since it uses less digits than its factorization.

12431332100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491405 (or 491398 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12431332100 its reverse (123313421), we get a palindrome (12554645521).

The spelling of 12431332100 in words is "twelve billion, four hundred thirty-one million, three hundred thirty-two thousand, one hundred".