123220023089 has 2 divisors, whose sum is σ = 123220023090. Its totient is φ = 123220023088.

The previous prime is 123220023083. The next prime is 123220023127. The reversal of 123220023089 is 980320022321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82373592064 + 40846431025 = 287008^2 + 202105^2 .

It is a cyclic number.

It is not a de Polignac number, because 123220023089 - 2²⁰ = 123218974513 is a prime.

It is not a weakly prime, because it can be changed into another prime (123220023083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61610011544 + 61610011545.

It is an arithmetic number, because the mean of its divisors is an integer number (61610011545).

Almost surely, 2^123220023089 is an apocalyptic number.

It is an amenable number.

123220023089 is a deficient number, since it is larger than the sum of its proper divisors (1).

123220023089 is an equidigital number, since it uses as much as digits as its factorization.

123220023089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 123220023089 in words is "one hundred twenty-three billion, two hundred twenty million, twenty-three thousand, eighty-nine".