3120112313 has 4 divisors (see below), whose sum is σ = 3120234468. Its totient is φ = 3119990160.

The previous prime is 3120112309. The next prime is 3120112319. The reversal of 3120112313 is 3132110213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3132110213 = 139 ⋅22533167.

It can be written as a sum of positive squares in 2 ways, for example, as 2544496249 + 575616064 = 50443^2 + 23992^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120112313 - 2² = 3120112309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3120112291 and 3120112300.

It is not an unprimeable number, because it can be changed into a prime (3120112319) 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, 6518 + ... + 79263.

It is an arithmetic number, because the mean of its divisors is an integer number (780058617).

Almost surely, 2^3120112313 is an apocalyptic number.

It is an amenable number.

3120112313 is a deficient number, since it is larger than the sum of its proper divisors (122155).

3120112313 is an equidigital number, since it uses as much as digits as its factorization.

3120112313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122154.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 3120112313 is about 55857.9655286513. The cubic root of 3120112313 is about 1461.2462482540.

Adding to 3120112313 its reverse (3132110213), we get a palindrome (6252222526).

The spelling of 3120112313 in words is "three billion, one hundred twenty million, one hundred twelve thousand, three hundred thirteen".