20113013057 has 2 divisors, whose sum is σ = 20113013058. Its totient is φ = 20113013056.

The previous prime is 20113013023. The next prime is 20113013059. The reversal of 20113013057 is 75031031102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18048310336 + 2064702721 = 134344^2 + 45439^2 .

It is a cyclic number.

It is not a de Polignac number, because 20113013057 - 2⁶ = 20113012993 is a prime.

Together with 20113013059, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20113013059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056506528 + 10056506529.

It is an arithmetic number, because the mean of its divisors is an integer number (10056506529).

Almost surely, 2^20113013057 is an apocalyptic number.

It is an amenable number.

20113013057 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113013057 is an equidigital number, since it uses as much as digits as its factorization.

20113013057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

Adding to 20113013057 its reverse (75031031102), we get a palindrome (95144044159).

The spelling of 20113013057 in words is "twenty billion, one hundred thirteen million, thirteen thousand, fifty-seven".