313103201021 has 16 divisors (see below), whose sum is σ = 342797903280. Its totient is φ = 284212177920.

The previous prime is 313103201011. The next prime is 313103201039. The reversal of 313103201021 is 120102301313.

It can be written as a sum of positive squares in 8 ways, for example, as 4772875396 + 308330325625 = 69086^2 + 555275^2 .

It is a cyclic number.

It is not a de Polignac number, because 313103201021 - 2¹⁴ = 313103184637 is a prime.

It is a super-2 number, since 2×313103201021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313103201011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3422645 + ... + 3512933.

It is an arithmetic number, because the mean of its divisors is an integer number (21424868955).

Almost surely, 2^313103201021 is an apocalyptic number.

It is an amenable number.

313103201021 is a deficient number, since it is larger than the sum of its proper divisors (29694702259).

313103201021 is a wasteful number, since it uses less digits than its factorization.

313103201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94736.

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

Adding to 313103201021 its reverse (120102301313), we get a palindrome (433205502334).

The spelling of 313103201021 in words is "three hundred thirteen billion, one hundred three million, two hundred one thousand, twenty-one".