31131413113 has 8 divisors (see below), whose sum is σ = 33094365120. Its totient is φ = 29200906800.

The previous prime is 31131413101. The next prime is 31131413143.

31131413113 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31131413113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31131413143) 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, 8109445 + ... + 8113282.

It is an arithmetic number, because the mean of its divisors is an integer number (4136795640).

Almost surely, 2^31131413113 is an apocalyptic number.

It is an amenable number.

31131413113 is a deficient number, since it is larger than the sum of its proper divisors (1962952007).

31131413113 is a wasteful number, since it uses less digits than its factorization.

31131413113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16222847.

The product of its digits is 324, while the sum is 22.

The spelling of 31131413113 in words is "thirty-one billion, one hundred thirty-one million, four hundred thirteen thousand, one hundred thirteen".