3113315773621 has 2 divisors, whose sum is σ = 3113315773622. Its totient is φ = 3113315773620.

The previous prime is 3113315773567. The next prime is 3113315773639. The reversal of 3113315773621 is 1263775133113.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3071081002500 + 42234771121 = 1752450^2 + 205511^2 .

It is a cyclic number.

It is not a de Polignac number, because 3113315773621 - 2³³ = 3104725839029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3113315773661) 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, 1556657886810 + 1556657886811.

It is an arithmetic number, because the mean of its divisors is an integer number (1556657886811).

Almost surely, 2^{3113315773621} is an apocalyptic number.

It is an amenable number.

3113315773621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3113315773621 is an equidigital number, since it uses as much as digits as its factorization.

3113315773621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 43.

The spelling of 3113315773621 in words is "three trillion, one hundred thirteen billion, three hundred fifteen million, seven hundred seventy-three thousand, six hundred twenty-one".