123122220171023 has 2 divisors, whose sum is σ = 123122220171024. Its totient is φ = 123122220171022.

The previous prime is 123122220171017. The next prime is 123122220171053. The reversal of 123122220171023 is 320171022221321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123122220171023 - 2¹⁸ = 123122219908879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123122220171053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61561110085511 + 61561110085512.

It is an arithmetic number, because the mean of its divisors is an integer number (61561110085512).

Almost surely, 2^{123122220171023} is an apocalyptic number.

123122220171023 is a deficient number, since it is larger than the sum of its proper divisors (1).

123122220171023 is an equidigital number, since it uses as much as digits as its factorization.

123122220171023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4032, while the sum is 29.

Adding to 123122220171023 its reverse (320171022221321), we get a palindrome (443293242392344).

The spelling of 123122220171023 in words is "one hundred twenty-three trillion, one hundred twenty-two billion, two hundred twenty million, one hundred seventy-one thousand, twenty-three".