123039099792 has 240 divisors, whose sum is σ = 410376150912. Its totient is φ = 34958407680.

The previous prime is 123039099769. The next prime is 123039099793. The reversal of 123039099792 is 297990930321.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (123039099793) 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 in 47 ways as a sum of consecutive naturals, for example, 4913608 + ... + 4938584.

Almost surely, 2^123039099792 is an apocalyptic number.

123039099792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123039099792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205188075456).

123039099792 is an abundant number, since it is smaller than the sum of its proper divisors (287337051120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123039099792 is a wasteful number, since it uses less digits than its factorization.

123039099792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25188 (or 25170 counting only the distinct ones).

The product of its (nonzero) digits is 1653372, while the sum is 54.

The spelling of 123039099792 in words is "one hundred twenty-three billion, thirty-nine million, ninety-nine thousand, seven hundred ninety-two".