100431321252 has 24 divisors (see below), whose sum is σ = 237549885216. Its totient is φ = 33018516288.

The previous prime is 100431321251. The next prime is 100431321257. The reversal of 100431321252 is 252123134001.

It is not an unprimeable number, because it can be changed into a prime (100431321251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57322938 + ... + 57324689.

It is an arithmetic number, because the mean of its divisors is an integer number (9897911884).

Almost surely, 2^100431321252 is an apocalyptic number.

100431321252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100431321252 is an abundant number, since it is smaller than the sum of its proper divisors (137118563964).

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

100431321252 is a wasteful number, since it uses less digits than its factorization.

100431321252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114647707 (or 114647705 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 100431321252 its reverse (252123134001), we get a palindrome (352554455253).

The spelling of 100431321252 in words is "one hundred billion, four hundred thirty-one million, three hundred twenty-one thousand, two hundred fifty-two".