23811931113 has 8 divisors (see below), whose sum is σ = 31760443968. Its totient is φ = 15869019504.

The previous prime is 23811931111. The next prime is 23811931153. The reversal of 23811931113 is 31113911832.

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

It is not a de Polignac number, because 23811931113 - 2¹ = 23811931111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23811931111) 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, 1390381 + ... + 1407402.

It is an arithmetic number, because the mean of its divisors is an integer number (3970055496).

Almost surely, 2^23811931113 is an apocalyptic number.

It is an amenable number.

23811931113 is a deficient number, since it is larger than the sum of its proper divisors (7948512855).

23811931113 is a wasteful number, since it uses less digits than its factorization.

23811931113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800623.

The product of its digits is 3888, while the sum is 33.

The spelling of 23811931113 in words is "twenty-three billion, eight hundred eleven million, nine hundred thirty-one thousand, one hundred thirteen".