31104013111 has 16 divisors (see below), whose sum is σ = 32667227136. Its totient is φ = 29580525216.

The previous prime is 31104013097. The next prime is 31104013139. The reversal of 31104013111 is 11131040113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31104013111 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 (31104013151) 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, 1357230 + ... + 1379956.

It is an arithmetic number, because the mean of its divisors is an integer number (2041701696).

Almost surely, 2^31104013111 is an apocalyptic number.

31104013111 is a deficient number, since it is larger than the sum of its proper divisors (1563214025).

31104013111 is a wasteful number, since it uses less digits than its factorization.

31104013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23598.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 31104013111 its reverse (11131040113), we get a palindrome (42235053224).

The spelling of 31104013111 in words is "thirty-one billion, one hundred four million, thirteen thousand, one hundred eleven".