31113313113 has 16 divisors (see below), whose sum is σ = 43928329536. Its totient is φ = 19520455680.

The previous prime is 31113313073. The next prime is 31113313129. The reversal of 31113313113 is 31131331113.

It is not a de Polignac number, because 31113313113 - 2¹⁷ = 31113182041 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 31113313113.

It is not an unprimeable number, because it can be changed into a prime (31113313513) 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, 984193 + ... + 1015313.

It is an arithmetic number, because the mean of its divisors is an integer number (2745520596).

Almost surely, 2^31113313113 is an apocalyptic number.

It is an amenable number.

31113313113 is a deficient number, since it is larger than the sum of its proper divisors (12815016423).

31113313113 is a wasteful number, since it uses less digits than its factorization.

31113313113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50744.

The product of its digits is 243, while the sum is 21.

Adding to 31113313113 its reverse (31131331113), we get a palindrome (62244644226).

The spelling of 31113313113 in words is "thirty-one billion, one hundred thirteen million, three hundred thirteen thousand, one hundred thirteen".