3131112133 has 4 divisors (see below), whose sum is σ = 3133404000. Its totient is φ = 3128820268.

The previous prime is 3131112119. The next prime is 3131112167. The reversal of 3131112133 is 3312111313.

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 a de Polignac number, because none of the positive numbers 2^k-3131112133 is a prime.

It is a super-3 number, since 3×3131112133³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3131112133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3131112113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1143883 + ... + 1146616.

It is an arithmetic number, because the mean of its divisors is an integer number (783351000).

Almost surely, 2^3131112133 is an apocalyptic number.

It is an amenable number.

3131112133 is a deficient number, since it is larger than the sum of its proper divisors (2291867).

3131112133 is a wasteful number, since it uses less digits than its factorization.

3131112133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2291866.

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

The square root of 3131112133 is about 55956.3413117763. The cubic root of 3131112133 is about 1462.9614208995.

Adding to 3131112133 its reverse (3312111313), we get a palindrome (6443223446).

The spelling of 3131112133 in words is "three billion, one hundred thirty-one million, one hundred twelve thousand, one hundred thirty-three".