231312212202 has 64 divisors (see below), whose sum is σ = 490225633920. Its totient is φ = 72559275264.

The previous prime is 231312212161. The next prime is 231312212227. The reversal of 231312212202 is 202212213132.

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, 14657188 + ... + 14672960.

It is an arithmetic number, because the mean of its divisors is an integer number (7659775530).

Almost surely, 2^231312212202 is an apocalyptic number.

231312212202 is an abundant number, since it is smaller than the sum of its proper divisors (258913421718).

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

231312212202 is a wasteful number, since it uses less digits than its factorization.

231312212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16647.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 231312212202 its reverse (202212213132), we get a palindrome (433524425334).

The spelling of 231312212202 in words is "two hundred thirty-one billion, three hundred twelve million, two hundred twelve thousand, two hundred two".