31044013 has 16 divisors (see below), whose sum is σ = 41682816. Its totient is φ = 22328640.

The previous prime is 31043993. The next prime is 31044019.

31044013 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 31044013 - 2⁹ = 31043501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31044019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14506 + ... + 16507.

It is an arithmetic number, because the mean of its divisors is an integer number (2605176).

Almost surely, 2^31044013 is an apocalyptic number.

It is an amenable number.

31044013 is a deficient number, since it is larger than the sum of its proper divisors (10638803).

31044013 is a wasteful number, since it uses less digits than its factorization.

31044013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31044.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 31044013 is about 5571.7154449954. The cubic root of 31044013 is about 314.2866633088.

It can be divided in two parts, 3104 and 4013, that added together give a palindrome (7117).

The spelling of 31044013 in words is "thirty-one million, forty-four thousand, thirteen".