123013033189 has 2 divisors, whose sum is σ = 123013033190. Its totient is φ = 123013033188.

The previous prime is 123013033111. The next prime is 123013033219. The reversal of 123013033189 is 981330310321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88784333089 + 34228700100 = 297967^2 + 185010^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123013033189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123013033789) 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, 61506516594 + 61506516595.

It is an arithmetic number, because the mean of its divisors is an integer number (61506516595).

Almost surely, 2^123013033189 is an apocalyptic number.

It is an amenable number.

123013033189 is a deficient number, since it is larger than the sum of its proper divisors (1).

123013033189 is an equidigital number, since it uses as much as digits as its factorization.

123013033189 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 123013033189 in words is "one hundred twenty-three billion, thirteen million, thirty-three thousand, one hundred eighty-nine".