20230567573991 has 2 divisors, whose sum is σ = 20230567573992. Its totient is φ = 20230567573990.

The previous prime is 20230567573981. The next prime is 20230567574027. The reversal of 20230567573991 is 19937576503202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20230567573991 - 2²² = 20230563379687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20230567573991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20230567573901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10115283786995 + 10115283786996.

It is an arithmetic number, because the mean of its divisors is an integer number (10115283786996).

Almost surely, 2^{20230567573991} is an apocalyptic number.

20230567573991 is a deficient number, since it is larger than the sum of its proper divisors (1).

20230567573991 is an equidigital number, since it uses as much as digits as its factorization.

20230567573991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21432600, while the sum is 59.

The spelling of 20230567573991 in words is "twenty trillion, two hundred thirty billion, five hundred sixty-seven million, five hundred seventy-three thousand, nine hundred ninety-one".