3112321131 has 16 divisors (see below), whose sum is σ = 4631531520. Its totient is φ = 2065572360.

The previous prime is 3112321129. The next prime is 3112321159. The reversal of 3112321131 is 1311232113.

3112321131 is a `hidden beast` number, since 311 + 2 + 321 + 1 + 31 = 666.

It is not a de Polignac number, because 3112321131 - 2¹ = 3112321129 is a prime.

It is a super-2 number, since 2×3112321131² = 19373085644938238322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3112321031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252435 + ... + 264476.

It is an arithmetic number, because the mean of its divisors is an integer number (289470720).

Almost surely, 2^3112321131 is an apocalyptic number.

3112321131 is a deficient number, since it is larger than the sum of its proper divisors (1519210389).

3112321131 is a wasteful number, since it uses less digits than its factorization.

3112321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517143 (or 517137 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 3112321131 is about 55788.1809257122. The cubic root of 3112321131 is about 1460.0289496668.

Adding to 3112321131 its reverse (1311232113), we get a palindrome (4423553244).

The spelling of 3112321131 in words is "three billion, one hundred twelve million, three hundred twenty-one thousand, one hundred thirty-one".