20625111153113 has 4 divisors (see below), whose sum is σ = 20683539230388. Its totient is φ = 20566683075840.

The previous prime is 20625111153089. The next prime is 20625111153131. The reversal of 20625111153113 is 31135111152602.

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 14797777916944 + 5827333236169 = 3846788^2 + 2413987^2 .

It is a cyclic number.

It is not a de Polignac number, because 20625111153113 - 2²⁶ = 20625044044249 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 20625111153113.

It is not an unprimeable number, because it can be changed into a prime (20625111153173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29214038108 + ... + 29214038813.

It is an arithmetic number, because the mean of its divisors is an integer number (5170884807597).

Almost surely, 2^{20625111153113} is an apocalyptic number.

It is an amenable number.

20625111153113 is a deficient number, since it is larger than the sum of its proper divisors (58428077275).

20625111153113 is an equidigital number, since it uses as much as digits as its factorization.

20625111153113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58428077274.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 20625111153113 in words is "twenty trillion, six hundred twenty-five billion, one hundred eleven million, one hundred fifty-three thousand, one hundred thirteen".