20397222383 has 2 divisors, whose sum is σ = 20397222384. Its totient is φ = 20397222382.

The previous prime is 20397222359. The next prime is 20397222401. The reversal of 20397222383 is 38322279302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20397222383 - 2²⁶ = 20330113519 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20397222383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20397222283) 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, 10198611191 + 10198611192.

It is an arithmetic number, because the mean of its divisors is an integer number (10198611192).

Almost surely, 2^20397222383 is an apocalyptic number.

20397222383 is a deficient number, since it is larger than the sum of its proper divisors (1).

20397222383 is an equidigital number, since it uses as much as digits as its factorization.

20397222383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 41.

The spelling of 20397222383 in words is "twenty billion, three hundred ninety-seven million, two hundred twenty-two thousand, three hundred eighty-three".