113031020057 has 2 divisors, whose sum is σ = 113031020058. Its totient is φ = 113031020056.

The previous prime is 113031019967. The next prime is 113031020119. The reversal of 113031020057 is 750020130311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109972487641 + 3058532416 = 331621^2 + 55304^2 .

It is a cyclic number.

It is not a de Polignac number, because 113031020057 - 2¹⁰ = 113031019033 is a prime.

It is a super-2 number, since 2×113031020057² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (113031020257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56515510028 + 56515510029.

It is an arithmetic number, because the mean of its divisors is an integer number (56515510029).

Almost surely, 2^113031020057 is an apocalyptic number.

It is an amenable number.

113031020057 is a deficient number, since it is larger than the sum of its proper divisors (1).

113031020057 is an equidigital number, since it uses as much as digits as its factorization.

113031020057 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 113031020057 its reverse (750020130311), we get a palindrome (863051150368).

The spelling of 113031020057 in words is "one hundred thirteen billion, thirty-one million, twenty thousand, fifty-seven".