231232020210 has 48 divisors (see below), whose sum is σ = 607040201664. Its totient is φ = 61063210656.

The previous prime is 231232020193. The next prime is 231232020269. The reversal of 231232020210 is 12020232132.

231232020210 is a `hidden beast` number, since 2 + 312 + 320 + 20 + 2 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 12462792 + ... + 12481331.

It is an arithmetic number, because the mean of its divisors is an integer number (12646670868).

Almost surely, 2^231232020210 is an apocalyptic number.

231232020210 is an abundant number, since it is smaller than the sum of its proper divisors (375808181454).

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

231232020210 is a wasteful number, since it uses less digits than its factorization.

231232020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24944239 (or 24944236 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 231232020210 its reverse (12020232132), we get a palindrome (243252252342).

The spelling of 231232020210 in words is "two hundred thirty-one billion, two hundred thirty-two million, twenty thousand, two hundred ten".