20413201313 has 2 divisors, whose sum is σ = 20413201314. Its totient is φ = 20413201312.

The previous prime is 20413201261. The next prime is 20413201373. The reversal of 20413201313 is 31310231402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13578541729 + 6834659584 = 116527^2 + 82672^2 .

It is a cyclic number.

It is not a de Polignac number, because 20413201313 - 2¹⁴ = 20413184929 is a prime.

It is not a weakly prime, because it can be changed into another prime (20413201373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206600656 + 10206600657.

It is an arithmetic number, because the mean of its divisors is an integer number (10206600657).

Almost surely, 2^20413201313 is an apocalyptic number.

It is an amenable number.

20413201313 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413201313 is an equidigital number, since it uses as much as digits as its factorization.

20413201313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20413201313 its reverse (31310231402), we get a palindrome (51723432715).

The spelling of 20413201313 in words is "twenty billion, four hundred thirteen million, two hundred one thousand, three hundred thirteen".