13231330 has 16 divisors (see below), whose sum is σ = 27218880. Its totient is φ = 4536432.

The previous prime is 13231319. The next prime is 13231331. The reversal of 13231330 is 3313231.

13231330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13231331) 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, 94440 + ... + 94579.

It is an arithmetic number, because the mean of its divisors is an integer number (1701180).

Almost surely, 2^13231330 is an apocalyptic number.

13231330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13231330 is an abundant number, since it is smaller than the sum of its proper divisors (13987550).

13231330 is a wasteful number, since it uses less digits than its factorization.

13231330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189033.

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

The square root of 13231330 is about 3637.4895188852. The cubic root of 13231330 is about 236.5199800756.

Adding to 13231330 its reverse (3313231), we get a palindrome (16544561).

The spelling of 13231330 in words is "thirteen million, two hundred thirty-one thousand, three hundred thirty".