231220133023324 has 24 divisors (see below), whose sum is σ = 412674442997040. Its totient is φ = 113317430613504.

The previous prime is 231220133023291. The next prime is 231220133023367. The reversal of 231220133023324 is 423320331022132.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 534946389 + ... + 535378444.

It is an arithmetic number, because the mean of its divisors is an integer number (17194768458210).

Almost surely, 2^{231220133023324} is an apocalyptic number.

It is an amenable number.

231220133023324 is a deficient number, since it is larger than the sum of its proper divisors (181454309973716).

231220133023324 is a wasteful number, since it uses less digits than its factorization.

231220133023324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070325909 (or 1070325907 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 231220133023324 its reverse (423320331022132), we get a palindrome (654540464045456).

The spelling of 231220133023324 in words is "two hundred thirty-one trillion, two hundred twenty billion, one hundred thirty-three million, twenty-three thousand, three hundred twenty-four".