20322125917 has 2 divisors, whose sum is σ = 20322125918. Its totient is φ = 20322125916.

The previous prime is 20322125851. The next prime is 20322125947. The reversal of 20322125917 is 71952122302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17135071801 + 3187054116 = 130901^2 + 56454^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322125917 - 2¹⁵ = 20322093149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20322125947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161062958 + 10161062959.

It is an arithmetic number, because the mean of its divisors is an integer number (10161062959).

Almost surely, 2^20322125917 is an apocalyptic number.

It is an amenable number.

20322125917 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322125917 is an equidigital number, since it uses as much as digits as its factorization.

20322125917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 20322125917 in words is "twenty billion, three hundred twenty-two million, one hundred twenty-five thousand, nine hundred seventeen".