113131301989 has 2 divisors, whose sum is σ = 113131301990. Its totient is φ = 113131301988.

The previous prime is 113131301981. The next prime is 113131302023. The reversal of 113131301989 is 989103131311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111851451364 + 1279850625 = 334442^2 + 35775^2 .

It is a cyclic number.

It is not a de Polignac number, because 113131301989 - 2³ = 113131301981 is a prime.

It is a super-2 number, since 2×113131301989² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113131301981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56565650994 + 56565650995.

It is an arithmetic number, because the mean of its divisors is an integer number (56565650995).

Almost surely, 2^113131301989 is an apocalyptic number.

It is an amenable number.

113131301989 is a deficient number, since it is larger than the sum of its proper divisors (1).

113131301989 is an equidigital number, since it uses as much as digits as its factorization.

113131301989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 40.

The spelling of 113131301989 in words is "one hundred thirteen billion, one hundred thirty-one million, three hundred one thousand, nine hundred eighty-nine".