23186340940931 has 8 divisors (see below), whose sum is σ = 26500915979520. Its totient is φ = 19872326056968.

The previous prime is 23186340940891. The next prime is 23186340940993. The reversal of 23186340940931 is 13904904368132.

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

It is a de Polignac number, because none of the positive numbers 2^k-23186340940931 is a prime.

It is a super-2 number, since 2×23186340940931² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23186340930931) 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, 139949951 + ... + 140115528.

It is an arithmetic number, because the mean of its divisors is an integer number (3312614497440).

Almost surely, 2^{23186340940931} is an apocalyptic number.

23186340940931 is a deficient number, since it is larger than the sum of its proper divisors (3314575038589).

23186340940931 is a wasteful number, since it uses less digits than its factorization.

23186340940931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280077313.

The product of its (nonzero) digits is 3359232, while the sum is 53.

The spelling of 23186340940931 in words is "twenty-three trillion, one hundred eighty-six billion, three hundred forty million, nine hundred forty thousand, nine hundred thirty-one".