3120211313 has 4 divisors (see below), whose sum is σ = 3121721460. Its totient is φ = 3118701168.

The previous prime is 3120211291. The next prime is 3120211327. The reversal of 3120211313 is 3131120213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 187772209 + 2932439104 = 13703^2 + 54152^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120211313 - 2²⁶ = 3053102449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3120211291 and 3120211300.

It is not an unprimeable number, because it can be changed into a prime (3120211343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 751970 + ... + 756107.

It is an arithmetic number, because the mean of its divisors is an integer number (780430365).

Almost surely, 2^3120211313 is an apocalyptic number.

It is an amenable number.

3120211313 is a deficient number, since it is larger than the sum of its proper divisors (1510147).

3120211313 is a wasteful number, since it uses less digits than its factorization.

3120211313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1510146.

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

The square root of 3120211313 is about 55858.8516978285. The cubic root of 3120211313 is about 1461.2617030233.

Adding to 3120211313 its reverse (3131120213), we get a palindrome (6251331526).

The spelling of 3120211313 in words is "three billion, one hundred twenty million, two hundred eleven thousand, three hundred thirteen".