13231113 has 16 divisors (see below), whose sum is σ = 20407296. Its totient is φ = 7468560.

The previous prime is 13231103. The next prime is 13231123. The reversal of 13231113 is 31113231.

It is an interprime number because it is at equal distance from previous prime (13231103) and next prime (13231123).

It is not a de Polignac number, because 13231113 - 2⁸ = 13230857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13231092 and 13231101.

It is not an unprimeable number, because it can be changed into a prime (13231103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2053 + ... + 5538.

It is an arithmetic number, because the mean of its divisors is an integer number (1275456).

Almost surely, 2^13231113 is an apocalyptic number.

It is an amenable number.

13231113 is a deficient number, since it is larger than the sum of its proper divisors (7176183).

13231113 is an equidigital number, since it uses as much as digits as its factorization.

13231113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7684.

The product of its digits is 54, while the sum is 15.

The square root of 13231113 is about 3637.4596904983. The cubic root of 13231113 is about 236.5186870558.

Adding to 13231113 its reverse (31113231), we get a palindrome (44344344).

The spelling of 13231113 in words is "thirteen million, two hundred thirty-one thousand, one hundred thirteen".