13303431 has 12 divisors (see below), whose sum is σ = 19879080. Its totient is φ = 8562960.

The previous prime is 13303403. The next prime is 13303471. The reversal of 13303431 is 13430331.

It is not a de Polignac number, because 13303431 - 2⁵ = 13303399 is a prime.

It is a super-2 number, since 2×13303431² = 353962552743522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13303471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25225 + ... + 25746.

It is an arithmetic number, because the mean of its divisors is an integer number (1656590).

Almost surely, 2^13303431 is an apocalyptic number.

13303431 is a deficient number, since it is larger than the sum of its proper divisors (6575649).

13303431 is a wasteful number, since it uses less digits than its factorization.

13303431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51006 (or 51003 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 13303431 is about 3647.3868728173. The cubic root of 13303431 is about 236.9488219355.

Adding to 13303431 its reverse (13430331), we get a palindrome (26733762).

It can be divided in two parts, 1330 and 3431, that added together give a square (4761 = 69²).

The spelling of 13303431 in words is "thirteen million, three hundred three thousand, four hundred thirty-one".