13107331 has 4 divisors (see below), whose sum is σ = 13427064. Its totient is φ = 12787600.

The previous prime is 13107317. The next prime is 13107337. The reversal of 13107331 is 13370131.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 13107331 - 2⁵ = 13107299 is a prime.

It is a super-2 number, since 2×13107331² = 343604251887122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13107299 and 13107308.

It is not an unprimeable number, because it can be changed into a prime (13107337) 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, 159805 + ... + 159886.

It is an arithmetic number, because the mean of its divisors is an integer number (3356766).

Almost surely, 2^13107331 is an apocalyptic number.

13107331 is a deficient number, since it is larger than the sum of its proper divisors (319733).

13107331 is an equidigital number, since it uses as much as digits as its factorization.

13107331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319732.

The product of its (nonzero) digits is 189, while the sum is 19.

The square root of 13107331 is about 3620.4048116198. The cubic root of 13107331 is about 235.7788014054.

Adding to 13107331 its reverse (13370131), we get a palindrome (26477462).

The spelling of 13107331 in words is "thirteen million, one hundred seven thousand, three hundred thirty-one".