13010231986 has 4 divisors (see below), whose sum is σ = 19515347982. Its totient is φ = 6505115992.

The previous prime is 13010231953. The next prime is 13010232023. The reversal of 13010231986 is 68913201031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12866591761 + 143640225 = 113431^2 + 11985^2 .

It is a super-2 number, since 2×13010231986² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3252557995 + ... + 3252557998.

Almost surely, 2^13010231986 is an apocalyptic number.

13010231986 is a deficient number, since it is larger than the sum of its proper divisors (6505115996).

13010231986 is an equidigital number, since it uses as much as digits as its factorization.

13010231986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6505115995.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 13010231986 in words is "thirteen billion, ten million, two hundred thirty-one thousand, nine hundred eighty-six".