20359902568331 has 2 divisors, whose sum is σ = 20359902568332. Its totient is φ = 20359902568330.

The previous prime is 20359902568319. The next prime is 20359902568387. The reversal of 20359902568331 is 13386520995302.

It is an a-pointer prime, because the next prime (20359902568387) can be obtained adding 20359902568331 to its sum of digits (56).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20359902568331 - 2¹⁰ = 20359902567307 is a prime.

It is a super-2 number, since 2×20359902568331² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20359902568301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10179951284165 + 10179951284166.

It is an arithmetic number, because the mean of its divisors is an integer number (10179951284166).

Almost surely, 2^{20359902568331} is an apocalyptic number.

20359902568331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20359902568331 is an equidigital number, since it uses as much as digits as its factorization.

20359902568331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10497600, while the sum is 56.

The spelling of 20359902568331 in words is "twenty trillion, three hundred fifty-nine billion, nine hundred two million, five hundred sixty-eight thousand, three hundred thirty-one".