113020131997 has 2 divisors, whose sum is σ = 113020131998. Its totient is φ = 113020131996.

The previous prime is 113020131937. The next prime is 113020132073. The reversal of 113020131997 is 799131020311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80895305241 + 32124826756 = 284421^2 + 179234^2 .

It is a cyclic number.

It is not a de Polignac number, because 113020131997 - 2⁷ = 113020131869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113020131937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56510065998 + 56510065999.

It is an arithmetic number, because the mean of its divisors is an integer number (56510065999).

Almost surely, 2^113020131997 is an apocalyptic number.

It is an amenable number.

113020131997 is a deficient number, since it is larger than the sum of its proper divisors (1).

113020131997 is an equidigital number, since it uses as much as digits as its factorization.

113020131997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The spelling of 113020131997 in words is "one hundred thirteen billion, twenty million, one hundred thirty-one thousand, nine hundred ninety-seven".