123444534089 has 2 divisors, whose sum is σ = 123444534090. Its totient is φ = 123444534088.

The previous prime is 123444534007. The next prime is 123444534097. The reversal of 123444534089 is 980435444321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91123685689 + 32320848400 = 301867^2 + 179780^2 .

It is a cyclic number.

It is not a de Polignac number, because 123444534089 - 2⁸ = 123444533833 is a prime.

It is not a weakly prime, because it can be changed into another prime (123444534989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61722267044 + 61722267045.

It is an arithmetic number, because the mean of its divisors is an integer number (61722267045).

Almost surely, 2^123444534089 is an apocalyptic number.

It is an amenable number.

123444534089 is a deficient number, since it is larger than the sum of its proper divisors (1).

123444534089 is an equidigital number, since it uses as much as digits as its factorization.

123444534089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1658880, while the sum is 47.

The spelling of 123444534089 in words is "one hundred twenty-three billion, four hundred forty-four million, five hundred thirty-four thousand, eighty-nine".