20023304401 has 2 divisors, whose sum is σ = 20023304402. Its totient is φ = 20023304400.

The previous prime is 20023304387. The next prime is 20023304407. The reversal of 20023304401 is 10440332002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16302182400 + 3721122001 = 127680^2 + 61001^2 .

It is a cyclic number.

It is not a de Polignac number, because 20023304401 - 2²⁷ = 19889086673 is a prime.

It is not a weakly prime, because it can be changed into another prime (20023304407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011652200 + 10011652201.

It is an arithmetic number, because the mean of its divisors is an integer number (10011652201).

Almost surely, 2^20023304401 is an apocalyptic number.

It is an amenable number.

20023304401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023304401 is an equidigital number, since it uses as much as digits as its factorization.

20023304401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20023304401 its reverse (10440332002), we get a palindrome (30463636403).

The spelling of 20023304401 in words is "twenty billion, twenty-three million, three hundred four thousand, four hundred one".