20359217023 has 2 divisors, whose sum is σ = 20359217024. Its totient is φ = 20359217022.

The previous prime is 20359216973. The next prime is 20359217069. The reversal of 20359217023 is 32071295302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20359217023 is a prime.

It is a super-2 number, since 2×20359217023² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20359217023.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20359317023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10179608511 + 10179608512.

It is an arithmetic number, because the mean of its divisors is an integer number (10179608512).

Almost surely, 2^20359217023 is an apocalyptic number.

20359217023 is a deficient number, since it is larger than the sum of its proper divisors (1).

20359217023 is an equidigital number, since it uses as much as digits as its factorization.

20359217023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 20359217023 in words is "twenty billion, three hundred fifty-nine million, two hundred seventeen thousand, twenty-three".