31041013 has 4 divisors (see below), whose sum is σ = 32042368. Its totient is φ = 30039660.

The previous prime is 31040983. The next prime is 31041019. The reversal of 31041013 is 31014013.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31041013 - 2¹³ = 31032821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31040984 and 31041002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31041019) 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, 500631 + ... + 500692.

It is an arithmetic number, because the mean of its divisors is an integer number (8010592).

Almost surely, 2^31041013 is an apocalyptic number.

It is an amenable number.

31041013 is a deficient number, since it is larger than the sum of its proper divisors (1001355).

31041013 is a wasteful number, since it uses less digits than its factorization.

31041013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001354.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 31041013 is about 5571.4462215838. The cubic root of 31041013 is about 314.2765390769.

Adding to 31041013 its reverse (31014013), we get a palindrome (62055026).

Subtracting from 31041013 its reverse (31014013), we obtain a cube (27000 = 30³).

The spelling of 31041013 in words is "thirty-one million, forty-one thousand, thirteen".