31044113 has 8 divisors (see below), whose sum is σ = 32110080. Its totient is φ = 29982240.

The previous prime is 31044109. The next prime is 31044133. The reversal of 31044113 is 31144013.

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 31044113 - 2² = 31044109 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31044091 and 31044100.

It is not an unprimeable number, because it can be changed into a prime (31044133) 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, 26933 + ... + 28061.

It is an arithmetic number, because the mean of its divisors is an integer number (4013760).

Almost surely, 2^31044113 is an apocalyptic number.

It is an amenable number.

31044113 is a deficient number, since it is larger than the sum of its proper divisors (1065967).

31044113 is a wasteful number, since it uses less digits than its factorization.

31044113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 31044113 is about 5571.7244188851. The cubic root of 31044113 is about 314.2870007720.

Adding to 31044113 its reverse (31144013), we get a palindrome (62188126).

The spelling of 31044113 in words is "thirty-one million, forty-four thousand, one hundred thirteen".