231223535524 has 12 divisors (see below), whose sum is σ = 413250574464. Its totient is φ = 113151942824.

The previous prime is 231223535503. The next prime is 231223535579. The reversal of 231223535524 is 425535322132.

231223535524 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 614956024 + ... + 614956399.

It is an arithmetic number, because the mean of its divisors is an integer number (34437547872).

Almost surely, 2^231223535524 is an apocalyptic number.

It is an amenable number.

231223535524 is a deficient number, since it is larger than the sum of its proper divisors (182027038940).

231223535524 is a wasteful number, since it uses less digits than its factorization.

231223535524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229912474 (or 1229912472 counting only the distinct ones).

The product of its digits is 216000, while the sum is 37.

Adding to 231223535524 its reverse (425535322132), we get a palindrome (656758857656).

The spelling of 231223535524 in words is "two hundred thirty-one billion, two hundred twenty-three million, five hundred thirty-five thousand, five hundred twenty-four".