231043224657 has 32 divisors (see below), whose sum is σ = 384800661504. Its totient is φ = 120250195200.

The previous prime is 231043224631. The next prime is 231043224679. The reversal of 231043224657 is 756422340132.

It is not a de Polignac number, because 231043224657 - 2¹² = 231043220561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231043224157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10427319 + ... + 10449452.

It is an arithmetic number, because the mean of its divisors is an integer number (12025020672).

Almost surely, 2^231043224657 is an apocalyptic number.

It is an amenable number.

231043224657 is a deficient number, since it is larger than the sum of its proper divisors (153757436847).

231043224657 is a wasteful number, since it uses less digits than its factorization.

231043224657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20876829.

The product of its (nonzero) digits is 241920, while the sum is 39.

Adding to 231043224657 its reverse (756422340132), we get a palindrome (987465564789).

The spelling of 231043224657 in words is "two hundred thirty-one billion, forty-three million, two hundred twenty-four thousand, six hundred fifty-seven".