231540253334321 has 8 divisors (see below), whose sum is σ = 244141789594080. Its totient is φ = 218980237788288.

The previous prime is 231540253334267. The next prime is 231540253334393. The reversal of 231540253334321 is 123433352045132.

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 231540253334321 - 2²⁶ = 231540186225457 is a prime.

It is a super-2 number, since 2×231540253334321² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (231540253334021) by changing a digit.

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, 10380166976 + ... + 10380189281.

It is an arithmetic number, because the mean of its divisors is an integer number (30517723699260).

Almost surely, 2^{231540253334321} is an apocalyptic number.

It is an amenable number.

231540253334321 is a deficient number, since it is larger than the sum of its proper divisors (12601536259759).

231540253334321 is a wasteful number, since it uses less digits than its factorization.

231540253334321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20760356863.

The product of its (nonzero) digits is 777600, while the sum is 41.

The spelling of 231540253334321 in words is "two hundred thirty-one trillion, five hundred forty billion, two hundred fifty-three million, three hundred thirty-four thousand, three hundred twenty-one".