313023001021 has 2 divisors, whose sum is σ = 313023001022. Its totient is φ = 313023001020.

The previous prime is 313023001013. The next prime is 313023001061. The reversal of 313023001021 is 120100320313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 291826844100 + 21196156921 = 540210^2 + 145589^2 .

It is a cyclic number.

It is not a de Polignac number, because 313023001021 - 2³ = 313023001013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313023000986 and 313023001004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313023001061) 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 as a sum of consecutive naturals, namely, 156511500510 + 156511500511.

It is an arithmetic number, because the mean of its divisors is an integer number (156511500511).

Almost surely, 2^313023001021 is an apocalyptic number.

It is an amenable number.

313023001021 is a deficient number, since it is larger than the sum of its proper divisors (1).

313023001021 is an equidigital number, since it uses as much as digits as its factorization.

313023001021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 313023001021 its reverse (120100320313), we get a palindrome (433123321334).

The spelling of 313023001021 in words is "three hundred thirteen billion, twenty-three million, one thousand, twenty-one".