20023404263 has 2 divisors, whose sum is σ = 20023404264. Its totient is φ = 20023404262.

The previous prime is 20023404251. The next prime is 20023404301. The reversal of 20023404263 is 36240432002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20023404263 - 2²⁰ = 20022355687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20023404563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10011702131 + 10011702132.

It is an arithmetic number, because the mean of its divisors is an integer number (10011702132).

Almost surely, 2^20023404263 is an apocalyptic number.

20023404263 is a deficient number, since it is larger than the sum of its proper divisors (1).

20023404263 is an equidigital number, since it uses as much as digits as its factorization.

20023404263 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 20023404263 its reverse (36240432002), we get a palindrome (56263836265).

The spelling of 20023404263 in words is "twenty billion, twenty-three million, four hundred four thousand, two hundred sixty-three".