23311471307836 has 48 divisors (see below), whose sum is σ = 43472532932640. Its totient is φ = 10899667834880.

The previous prime is 23311471307821. The next prime is 23311471307879. The reversal of 23311471307836 is 63870317411332.

It is a super-2 number, since 2×23311471307836² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23311471307836.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13718526 + ... + 15323866.

It is an arithmetic number, because the mean of its divisors is an integer number (905677769430).

Almost surely, 2^{23311471307836} is an apocalyptic number.

It is an amenable number.

23311471307836 is a deficient number, since it is larger than the sum of its proper divisors (20161061624804).

23311471307836 is a wasteful number, since it uses less digits than its factorization.

23311471307836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1606734 (or 1606732 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 49.

The spelling of 23311471307836 in words is "twenty-three trillion, three hundred eleven billion, four hundred seventy-one million, three hundred seven thousand, eight hundred thirty-six".