313110202121 has 2 divisors, whose sum is σ = 313110202122. Its totient is φ = 313110202120.

The previous prime is 313110202091. The next prime is 313110202169. The reversal of 313110202121 is 121202011313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299275737721 + 13834464400 = 547061^2 + 117620^2 .

It is a cyclic number.

It is not a de Polignac number, because 313110202121 - 2¹⁸ = 313109939977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 313110202121.

It is not a weakly prime, because it can be changed into another prime (313110201121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156555101060 + 156555101061.

It is an arithmetic number, because the mean of its divisors is an integer number (156555101061).

Almost surely, 2^313110202121 is an apocalyptic number.

It is an amenable number.

313110202121 is a deficient number, since it is larger than the sum of its proper divisors (1).

313110202121 is an equidigital number, since it uses as much as digits as its factorization.

313110202121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 313110202121 its reverse (121202011313), we get a palindrome (434312213434).

The spelling of 313110202121 in words is "three hundred thirteen billion, one hundred ten million, two hundred two thousand, one hundred twenty-one".