13033110681 has 10 divisors (see below), whose sum is σ = 19469214842. Its totient is φ = 8688740400.

The previous prime is 13033110647. The next prime is 13033110683. The reversal of 13033110681 is 18601133031.

13033110681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 11518655625 + 1514455056 = 107325^2 + 38916^2 .

It is not a de Polignac number, because 13033110681 - 2⁶ = 13033110617 is a prime.

It is a super-2 number, since 2×13033110681² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13033110683) 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 in 9 ways as a sum of consecutive naturals, for example, 80451220 + ... + 80451381.

Almost surely, 2^13033110681 is an apocalyptic number.

It is an amenable number.

13033110681 is a deficient number, since it is larger than the sum of its proper divisors (6436104161).

13033110681 is an equidigital number, since it uses as much as digits as its factorization.

13033110681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160902613 (or 160902604 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 13033110681 in words is "thirteen billion, thirty-three million, one hundred ten thousand, six hundred eighty-one".