231166557323 has 8 divisors (see below), whose sum is σ = 248952858000. Its totient is φ = 213380864928.

The previous prime is 231166557257. The next prime is 231166557329. The reversal of 231166557323 is 323755661132.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 231166557323 - 2¹² = 231166553227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231166557329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914153 + ... + 1139301.

It is an arithmetic number, because the mean of its divisors is an integer number (31119107250).

Almost surely, 2^231166557323 is an apocalyptic number.

231166557323 is a deficient number, since it is larger than the sum of its proper divisors (17786300677).

231166557323 is a wasteful number, since it uses less digits than its factorization.

231166557323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304141.

The product of its digits is 680400, while the sum is 44.

The spelling of 231166557323 in words is "two hundred thirty-one billion, one hundred sixty-six million, five hundred fifty-seven thousand, three hundred twenty-three".