20322123121 has 2 divisors, whose sum is σ = 20322123122. Its totient is φ = 20322123120.

The previous prime is 20322123103. The next prime is 20322123137. The reversal of 20322123121 is 12132122302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12580762896 + 7741360225 = 112164^2 + 87985^2 .

It is a cyclic number.

It is not a de Polignac number, because 20322123121 - 2¹⁵ = 20322090353 is a prime.

It is not a weakly prime, because it can be changed into another prime (20322103121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161061560 + 10161061561.

It is an arithmetic number, because the mean of its divisors is an integer number (10161061561).

Almost surely, 2^20322123121 is an apocalyptic number.

It is an amenable number.

20322123121 is a deficient number, since it is larger than the sum of its proper divisors (1).

20322123121 is an equidigital number, since it uses as much as digits as its factorization.

20322123121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20322123121 its reverse (12132122302), we get a palindrome (32454245423).

The spelling of 20322123121 in words is "twenty billion, three hundred twenty-two million, one hundred twenty-three thousand, one hundred twenty-one".