231230522522 has 16 divisors (see below), whose sum is σ = 355640448744. Its totient is φ = 112689024000.

The previous prime is 231230522513. The next prime is 231230522539. The reversal of 231230522522 is 225225032132.

It can be written as a sum of positive squares in 4 ways, for example, as 114574803121 + 116655719401 = 338489^2 + 341549^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1241879 + ... + 1415882.

Almost surely, 2^231230522522 is an apocalyptic number.

231230522522 is a deficient number, since it is larger than the sum of its proper divisors (124409926222).

231230522522 is a wasteful number, since it uses less digits than its factorization.

231230522522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658865.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 231230522522 its reverse (225225032132), we get a palindrome (456455554654).

The spelling of 231230522522 in words is "two hundred thirty-one billion, two hundred thirty million, five hundred twenty-two thousand, five hundred twenty-two".