20204312413 has 2 divisors, whose sum is σ = 20204312414. Its totient is φ = 20204312412.

The previous prime is 20204312363. The next prime is 20204312423. The reversal of 20204312413 is 31421340202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20083708089 + 120604324 = 141717^2 + 10982^2 .

It is a cyclic number.

It is not a de Polignac number, because 20204312413 - 2³³ = 11614377821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20204312423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10102156206 + 10102156207.

It is an arithmetic number, because the mean of its divisors is an integer number (10102156207).

Almost surely, 2^20204312413 is an apocalyptic number.

It is an amenable number.

20204312413 is a deficient number, since it is larger than the sum of its proper divisors (1).

20204312413 is an equidigital number, since it uses as much as digits as its factorization.

20204312413 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 20204312413 its reverse (31421340202), we get a palindrome (51625652615).

The spelling of 20204312413 in words is "twenty billion, two hundred four million, three hundred twelve thousand, four hundred thirteen".