2120331313 has 2 divisors, whose sum is σ = 2120331314. Its totient is φ = 2120331312.

The previous prime is 2120331299. The next prime is 2120331347. The reversal of 2120331313 is 3131330212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1157904784 + 962426529 = 34028^2 + 31023^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120331313 - 2⁹ = 2120330801 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120331373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060165656 + 1060165657.

It is an arithmetic number, because the mean of its divisors is an integer number (1060165657).

Almost surely, 2^2120331313 is an apocalyptic number.

It is an amenable number.

2120331313 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120331313 is an equidigital number, since it uses as much as digits as its factorization.

2120331313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2120331313 is about 46047.0554216011. The cubic root of 2120331313 is about 1284.6985748506.

Adding to 2120331313 its reverse (3131330212), we get a palindrome (5251661525).

The spelling of 2120331313 in words is "two billion, one hundred twenty million, three hundred thirty-one thousand, three hundred thirteen".