231223244531532 has 96 divisors (see below), whose sum is σ = 619563292830720. Its totient is φ = 66377976252480.

The previous prime is 231223244531519. The next prime is 231223244531557. The reversal of 231223244531532 is 235135442322132.

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, 87386863 + ... + 89993945.

It is an arithmetic number, because the mean of its divisors is an integer number (6453784300320).

Almost surely, 2^{231223244531532} is an apocalyptic number.

231223244531532 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

231223244531532 is an abundant number, since it is smaller than the sum of its proper divisors (388340048299188).

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

231223244531532 is a wasteful number, since it uses less digits than its factorization.

231223244531532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2642483 (or 2642481 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 42.

Adding to 231223244531532 its reverse (235135442322132), we get a palindrome (466358686853664).

The spelling of 231223244531532 in words is "two hundred thirty-one trillion, two hundred twenty-three billion, two hundred forty-four million, five hundred thirty-one thousand, five hundred thirty-two".