3120521413 has 2 divisors, whose sum is σ = 3120521414. Its totient is φ = 3120521412.

The previous prime is 3120521407. The next prime is 3120521477. The reversal of 3120521413 is 3141250213.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3043397889 + 77123524 = 55167^2 + 8782^2 .

It is a cyclic number.

It is not a de Polignac number, because 3120521413 - 2²⁹ = 2583650501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3120521483) 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 as a sum of consecutive naturals, namely, 1560260706 + 1560260707.

It is an arithmetic number, because the mean of its divisors is an integer number (1560260707).

Almost surely, 2^3120521413 is an apocalyptic number.

It is an amenable number.

3120521413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120521413 is an equidigital number, since it uses as much as digits as its factorization.

3120521413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3120521413 is about 55861.6273751490. The cubic root of 3120521413 is about 1461.3101102409.

Adding to 3120521413 its reverse (3141250213), we get a palindrome (6261771626).

The spelling of 3120521413 in words is "three billion, one hundred twenty million, five hundred twenty-one thousand, four hundred thirteen".