13230331 has 8 divisors (see below), whose sum is σ = 13600944. Its totient is φ = 12862080.

The previous prime is 13230307. The next prime is 13230341. The reversal of 13230331 is 13303231.

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

It is a cyclic number.

It is not a de Polignac number, because 13230331 - 2⁵ = 13230299 is a prime.

It is a super-2 number, since 2×13230331² = 350083316739122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13230341) 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, 21135 + ... + 21751.

It is an arithmetic number, because the mean of its divisors is an integer number (1700118).

Almost surely, 2^13230331 is an apocalyptic number.

13230331 is a deficient number, since it is larger than the sum of its proper divisors (370613).

13230331 is an equidigital number, since it uses as much as digits as its factorization.

13230331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

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

The square root of 13230331 is about 3637.3521963098. The cubic root of 13230331 is about 236.5140273002.

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

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

The spelling of 13230331 in words is "thirteen million, two hundred thirty thousand, three hundred thirty-one".