3131123113 has 8 divisors (see below), whose sum is σ = 3231915200. Its totient is φ = 3031182000.

The previous prime is 3131123089. The next prime is 3131123117. The reversal of 3131123113 is 3113211313.

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 3131123113 - 2²⁹ = 2594252201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131123117) 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, 205263 + ... + 219988.

It is an arithmetic number, because the mean of its divisors is an integer number (403989400).

Almost surely, 2^3131123113 is an apocalyptic number.

It is an amenable number.

3131123113 is a deficient number, since it is larger than the sum of its proper divisors (100792087).

3131123113 is a wasteful number, since it uses less digits than its factorization.

3131123113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425487.

The product of its digits is 162, while the sum is 19.

The square root of 3131123113 is about 55956.4394238947. The cubic root of 3131123113 is about 1462.9631309732.

Adding to 3131123113 its reverse (3113211313), we get a palindrome (6244334426).

The spelling of 3131123113 in words is "three billion, one hundred thirty-one million, one hundred twenty-three thousand, one hundred thirteen".