13142331 has 10 divisors (see below), whose sum is σ = 19632492. Its totient is φ = 8761500.

The previous prime is 13142321. The next prime is 13142333. The reversal of 13142331 is 13324131.

It is not a de Polignac number, because 13142331 - 2⁵ = 13142299 is a prime.

It is a super-2 number, since 2×13142331² = 345441728227122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13142333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 81045 + ... + 81206.

Almost surely, 2^13142331 is an apocalyptic number.

13142331 is a deficient number, since it is larger than the sum of its proper divisors (6490161).

13142331 is an equidigital number, since it uses as much as digits as its factorization.

13142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162263 (or 162254 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13142331 is about 3625.2353027079. The cubic root of 13142331 is about 235.9884785623.

Adding to 13142331 its reverse (13324131), we get a palindrome (26466462).

The spelling of 13142331 in words is "thirteen million, one hundred forty-two thousand, three hundred thirty-one".