123000099 has 16 divisors (see below), whose sum is σ = 168844032. Its totient is φ = 79589088.

The previous prime is 123000037. The next prime is 123000133. The reversal of 123000099 is 990000321.

It is a happy number.

It is not a de Polignac number, because 123000099 - 2⁹ = 122999587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123000019) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54732 + ... + 56934.

It is an arithmetic number, because the mean of its divisors is an integer number (10552752).

Almost surely, 2^123000099 is an apocalyptic number.

123000099 is a deficient number, since it is larger than the sum of its proper divisors (45843933).

123000099 is a wasteful number, since it uses less digits than its factorization.

123000099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2746.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 123000099 is about 11090.5409696732. The cubic root of 123000099 is about 497.3191167539.

The spelling of 123000099 in words is "one hundred twenty-three million, ninety-nine", and thus it is an aban number.