20113123002113 has 32 divisors (see below), whose sum is σ = 21346213969920. Its totient is φ = 18922254324480.

The previous prime is 20113123002079. The next prime is 20113123002131. The reversal of 20113123002113 is 31120032131102.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20113123002113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113123002613) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 421997678 + ... + 422045336.

It is an arithmetic number, because the mean of its divisors is an integer number (667069186560).

Almost surely, 2^{20113123002113} is an apocalyptic number.

It is an amenable number.

20113123002113 is a deficient number, since it is larger than the sum of its proper divisors (1233090967807).

20113123002113 is a wasteful number, since it uses less digits than its factorization.

20113123002113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49677.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20113123002113 its reverse (31120032131102), we get a palindrome (51233155133215).

The spelling of 20113123002113 in words is "twenty trillion, one hundred thirteen billion, one hundred twenty-three million, two thousand, one hundred thirteen".