13231039 has 4 divisors (see below), whose sum is σ = 13244680. Its totient is φ = 13217400.

The previous prime is 13231027. The next prime is 13231061. The reversal of 13231039 is 93013231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93013231 = 211 ⋅440821.

It is a cyclic number.

It is not a de Polignac number, because 13231039 - 2⁹ = 13230527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5244 + ... + 7345.

It is an arithmetic number, because the mean of its divisors is an integer number (3311170).

Almost surely, 2^13231039 is an apocalyptic number.

13231039 is a deficient number, since it is larger than the sum of its proper divisors (13641).

13231039 is a wasteful number, since it uses less digits than its factorization.

13231039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13640.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 13231039 is about 3637.4495185501. The cubic root of 13231039 is about 236.5182461149.

The spelling of 13231039 in words is "thirteen million, two hundred thirty-one thousand, thirty-nine".