13376312881 has 4 divisors (see below), whose sum is σ = 13376566564. Its totient is φ = 13376059200.

The previous prime is 13376312869. The next prime is 13376312891. The reversal of 13376312881 is 18821367331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7317091600 + 6059221281 = 85540^2 + 77841^2 .

It is a cyclic number.

It is not a de Polignac number, because 13376312881 - 2²⁹ = 12839441969 is a prime.

It is a super-2 number, since 2×13376312881² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13376312891) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14700 + ... + 164221.

It is an arithmetic number, because the mean of its divisors is an integer number (3344141641).

Almost surely, 2^13376312881 is an apocalyptic number.

It is an amenable number.

13376312881 is a deficient number, since it is larger than the sum of its proper divisors (253683).

13376312881 is an equidigital number, since it uses as much as digits as its factorization.

13376312881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253682.

The product of its digits is 145152, while the sum is 43.

The spelling of 13376312881 in words is "thirteen billion, three hundred seventy-six million, three hundred twelve thousand, eight hundred eighty-one".