13013113331 has 4 divisors (see below), whose sum is σ = 13045892352. Its totient is φ = 12980334312.

The previous prime is 13013113291. The next prime is 13013113387. The reversal of 13013113331 is 13331131031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13013113331 is a prime.

It is a super-2 number, since 2×13013113331² (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 (13013113831) 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, 16388915 + ... + 16389708.

It is an arithmetic number, because the mean of its divisors is an integer number (3261473088).

Almost surely, 2^13013113331 is an apocalyptic number.

13013113331 is a deficient number, since it is larger than the sum of its proper divisors (32779021).

13013113331 is an equidigital number, since it uses as much as digits as its factorization.

13013113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32779020.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 13013113331 its reverse (13331131031), we get a palindrome (26344244362).

The spelling of 13013113331 in words is "thirteen billion, thirteen million, one hundred thirteen thousand, three hundred thirty-one".