231021010000 has 100 divisors (see below), whose sum is σ = 610172982144. Its totient is φ = 84007600000.

The previous prime is 231021009991. The next prime is 231021010049. The reversal of 231021010000 is 10120132.

It is a tau number, because it is divible by the number of its divisors (100).

It is a super-2 number, since 2×231021010000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 940096 + ... + 1160095.

Almost surely, 2^231021010000 is an apocalyptic number.

231021010000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231021010000 is an abundant number, since it is smaller than the sum of its proper divisors (379151972144).

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

231021010000 is a wasteful number, since it uses less digits than its factorization.

231021010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100230 (or 2100209 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 231021010000 its reverse (10120132), we get a palindrome (231031130132).

The spelling of 231021010000 in words is "two hundred thirty-one billion, twenty-one million, ten thousand".