231021020132112 has 160 divisors (see below), whose sum is σ = 698047450103808. Its totient is φ = 64470201988608.

The previous prime is 231021020132083. The next prime is 231021020132131. The reversal of 231021020132112 is 211231020120132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25115988 + ... + 33058355.

Almost surely, 2^{231021020132112} is an apocalyptic number.

It is an amenable number.

231021020132112 is an abundant number, since it is smaller than the sum of its proper divisors (467026429971696).

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

231021020132112 is a wasteful number, since it uses less digits than its factorization.

231021020132112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58174637 (or 58174631 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 231021020132112 its reverse (211231020120132), we get a palindrome (442252040252244).

The spelling of 231021020132112 in words is "two hundred thirty-one trillion, twenty-one billion, twenty million, one hundred thirty-two thousand, one hundred twelve".