3112313331 has 4 divisors (see below), whose sum is σ = 4149751112. Its totient is φ = 2074875552.

The previous prime is 3112313311. The next prime is 3112313363. The reversal of 3112313331 is 1333132113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333132113 = 3 ⋅444377371.

It is not a de Polignac number, because 3112313331 - 2⁷ = 3112313203 is a prime.

It is a super-2 number, since 2×3112313331² = 19372988540640631122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3112313298 and 3112313307.

It is not an unprimeable number, because it can be changed into a prime (3112313311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 518718886 + ... + 518718891.

It is an arithmetic number, because the mean of its divisors is an integer number (1037437778).

Almost surely, 2^3112313331 is an apocalyptic number.

3112313331 is a deficient number, since it is larger than the sum of its proper divisors (1037437781).

3112313331 is a wasteful number, since it uses less digits than its factorization.

3112313331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037437780.

The product of its digits is 486, while the sum is 21.

The square root of 3112313331 is about 55788.1110183881. Note that the first 3 decimals coincide. The cubic root of 3112313331 is about 1460.0277299731.

Adding to 3112313331 its reverse (1333132113), we get a palindrome (4445445444).

The spelling of 3112313331 in words is "three billion, one hundred twelve million, three hundred thirteen thousand, three hundred thirty-one".