231002120100 has 36 divisors (see below), whose sum is σ = 668366135024. Its totient is φ = 61600565280.

The previous prime is 231002120047. The next prime is 231002120117. The reversal of 231002120100 is 1021200132.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 385003234 + ... + 385003833.

Almost surely, 2^231002120100 is an apocalyptic number.

231002120100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231002120100 is an abundant number, since it is smaller than the sum of its proper divisors (437364014924).

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

231002120100 is a wasteful number, since it uses less digits than its factorization.

231002120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770007084 (or 770007077 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 231002120100 its reverse (1021200132), we get a palindrome (232023320232).

The spelling of 231002120100 in words is "two hundred thirty-one billion, two million, one hundred twenty thousand, one hundred".