23112520605 has 54 divisors (see below), whose sum is σ = 40604551962. Its totient is φ = 12161872320.

The previous prime is 23112520591. The next prime is 23112520637. The reversal of 23112520605 is 50602521132.

It is a happy number.

23112520605 is a `hidden beast` number, since 2 + 3 + 1 + 1 + 2 + 52 + 0 + 605 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 11936436516 + 11176084089 = 109254^2 + 105717^2 .

It is not a de Polignac number, because 23112520605 - 2¹³ = 23112512413 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 133598299 + ... + 133598471.

Almost surely, 2^23112520605 is an apocalyptic number.

It is an amenable number.

23112520605 is a deficient number, since it is larger than the sum of its proper divisors (17492031357).

23112520605 is an equidigital number, since it uses as much as digits as its factorization.

23112520605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 312 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 23112520605 in words is "twenty-three billion, one hundred twelve million, five hundred twenty thousand, six hundred five".