313532340224021 has 2 divisors, whose sum is σ = 313532340224022. Its totient is φ = 313532340224020.

The previous prime is 313532340223987. The next prime is 313532340224111. The reversal of 313532340224021 is 120422043235313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 275265063760996 + 38267276463025 = 16591114^2 + 6186055^2 .

It is a cyclic number.

It is not a de Polignac number, because 313532340224021 - 2³⁸ = 313257462317077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313532340229021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156766170112010 + 156766170112011.

It is an arithmetic number, because the mean of its divisors is an integer number (156766170112011).

Almost surely, 2^{313532340224021} is an apocalyptic number.

It is an amenable number.

313532340224021 is a deficient number, since it is larger than the sum of its proper divisors (1).

313532340224021 is an equidigital number, since it uses as much as digits as its factorization.

313532340224021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 313532340224021 its reverse (120422043235313), we get a palindrome (433954383459334).

The spelling of 313532340224021 in words is "three hundred thirteen trillion, five hundred thirty-two billion, three hundred forty million, two hundred twenty-four thousand, twenty-one".