13231055 has 4 divisors (see below), whose sum is σ = 15877272. Its totient is φ = 10584840.

The previous prime is 13231027. The next prime is 13231061. The reversal of 13231055 is 55013231.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13231055 - 2⁶ = 13230991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1323101 + ... + 1323110.

It is an arithmetic number, because the mean of its divisors is an integer number (3969318).

Almost surely, 2^13231055 is an apocalyptic number.

13231055 is a deficient number, since it is larger than the sum of its proper divisors (2646217).

13231055 is an equidigital number, since it uses as much as digits as its factorization.

13231055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2646216.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 13231055 is about 3637.4517178926. The cubic root of 13231055 is about 236.5183414536.

Adding to 13231055 its reverse (55013231), we get a palindrome (68244286).

The spelling of 13231055 in words is "thirteen million, two hundred thirty-one thousand, fifty-five".