113131301986 has 4 divisors (see below), whose sum is σ = 169696952982. Its totient is φ = 56565650992.

The previous prime is 113131301981. The next prime is 113131301989. The reversal of 113131301986 is 689103131311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 689103131311 = 7 ⋅98443304473.

It can be written as a sum of positive squares in only one way, i.e., 108031199761 + 5100102225 = 328681^2 + 71415^2 .

It is not an unprimeable number, because it can be changed into a prime (113131301981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28282825495 + ... + 28282825498.

Almost surely, 2^113131301986 is an apocalyptic number.

113131301986 is a deficient number, since it is larger than the sum of its proper divisors (56565650996).

113131301986 is an equidigital number, since it uses as much as digits as its factorization.

113131301986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56565650995.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 113131301986 in words is "one hundred thirteen billion, one hundred thirty-one million, three hundred one thousand, nine hundred eighty-six".