20312042334313 has 2 divisors, whose sum is σ = 20312042334314. Its totient is φ = 20312042334312.

The previous prime is 20312042334257. The next prime is 20312042334329. The reversal of 20312042334313 is 31343324021302.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18508210681689 + 1803831652624 = 4302117^2 + 1343068^2 .

It is a cyclic number.

It is not a de Polignac number, because 20312042334313 - 2⁹ = 20312042333801 is a prime.

It is not a weakly prime, because it can be changed into another prime (20312042334383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156021167156 + 10156021167157.

It is an arithmetic number, because the mean of its divisors is an integer number (10156021167157).

Almost surely, 2^{20312042334313} is an apocalyptic number.

It is an amenable number.

20312042334313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20312042334313 is an equidigital number, since it uses as much as digits as its factorization.

20312042334313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 20312042334313 its reverse (31343324021302), we get a palindrome (51655366355615).

The spelling of 20312042334313 in words is "twenty trillion, three hundred twelve billion, forty-two million, three hundred thirty-four thousand, three hundred thirteen".