231531503223332 has 48 divisors (see below), whose sum is σ = 437968245318912. Its totient is φ = 106463876636160.

The previous prime is 231531503223329. The next prime is 231531503223343. The reversal of 231531503223332 is 233322305135132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 687760883 + ... + 688097445.

It is an arithmetic number, because the mean of its divisors is an integer number (9124338444144).

Almost surely, 2^{231531503223332} is an apocalyptic number.

It is an amenable number.

231531503223332 is a deficient number, since it is larger than the sum of its proper divisors (206436742095580).

231531503223332 is a wasteful number, since it uses less digits than its factorization.

231531503223332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385668 (or 385666 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 38.

Adding to 231531503223332 its reverse (233322305135132), we get a palindrome (464853808358464).

The spelling of 231531503223332 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, five hundred three million, two hundred twenty-three thousand, three hundred thirty-two".