13303231 has 8 divisors (see below), whose sum is σ = 14137200. Its totient is φ = 12475008.

The previous prime is 13303219. The next prime is 13303237. The reversal of 13303231 is 13230331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13303231 - 2¹⁹ = 12778943 is a prime.

It is a super-2 number, since 2×13303231² = 353951910078722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13303237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3945 + ... + 6493.

It is an arithmetic number, because the mean of its divisors is an integer number (1767150).

Almost surely, 2^13303231 is an apocalyptic number.

13303231 is a deficient number, since it is larger than the sum of its proper divisors (833969).

13303231 is a wasteful number, since it uses less digits than its factorization.

13303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2873.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 13303231 is about 3647.3594558255. The cubic root of 13303231 is about 236.9476345225.

Adding to 13303231 its reverse (13230331), we get a palindrome (26533562).

Subtracting from 13303231 its reverse (13230331), we obtain a square (72900 = 270²).

The spelling of 13303231 in words is "thirteen million, three hundred three thousand, two hundred thirty-one".