23115600385 has 4 divisors (see below), whose sum is σ = 27738720468. Its totient is φ = 18492480304.

The previous prime is 23115600373. The next prime is 23115600413. The reversal of 23115600385 is 58300651132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6663946689 + 16451653696 = 81633^2 + 128264^2 .

It is a cyclic number.

It is not a de Polignac number, because 23115600385 - 2⁵ = 23115600353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23115600385.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2311560034 + ... + 2311560043.

It is an arithmetic number, because the mean of its divisors is an integer number (6934680117).

Almost surely, 2^23115600385 is an apocalyptic number.

It is an amenable number.

23115600385 is a deficient number, since it is larger than the sum of its proper divisors (4623120083).

23115600385 is an equidigital number, since it uses as much as digits as its factorization.

23115600385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4623120082.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 23115600385 in words is "twenty-three billion, one hundred fifteen million, six hundred thousand, three hundred eighty-five".