202131001313 has 2 divisors, whose sum is σ = 202131001314. Its totient is φ = 202131001312.

The previous prime is 202131001297. The next prime is 202131001379. The reversal of 202131001313 is 313100131202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187066630144 + 15064371169 = 432512^2 + 122737^2 .

It is a cyclic number.

It is not a de Polignac number, because 202131001313 - 2⁴ = 202131001297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202131001291 and 202131001300.

It is not a weakly prime, because it can be changed into another prime (202131001393) 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, 101065500656 + 101065500657.

It is an arithmetic number, because the mean of its divisors is an integer number (101065500657).

Almost surely, 2^202131001313 is an apocalyptic number.

It is an amenable number.

202131001313 is a deficient number, since it is larger than the sum of its proper divisors (1).

202131001313 is an equidigital number, since it uses as much as digits as its factorization.

202131001313 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 17.

Adding to 202131001313 its reverse (313100131202), we get a palindrome (515231132515).

The spelling of 202131001313 in words is "two hundred two billion, one hundred thirty-one million, one thousand, three hundred thirteen".