123899833008 has 240 divisors, whose sum is σ = 411369504000. Its totient is φ = 35364688128.

The previous prime is 123899832989. The next prime is 123899833021. The reversal of 123899833008 is 800338998321.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40795266 + ... + 40798302.

It is an arithmetic number, because the mean of its divisors is an integer number (1714039600).

Almost surely, 2^123899833008 is an apocalyptic number.

123899833008 is a gapful number since it is divisible by the number (18) 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 123899833008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205684752000).

123899833008 is an abundant number, since it is smaller than the sum of its proper divisors (287469670992).

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

123899833008 is a wasteful number, since it uses less digits than its factorization.

123899833008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566 (or 4548 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The spelling of 123899833008 in words is "one hundred twenty-three billion, eight hundred ninety-nine million, eight hundred thirty-three thousand, eight".