123924203520 has 384 divisors, whose sum is σ = 434042219520. Its totient is φ = 29998448640.

The previous prime is 123924203479. The next prime is 123924203551. The reversal of 123924203520 is 25302429321.

It is a tau number, because it is divible by the number of its divisors (384).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24358417 + ... + 24363503.

It is an arithmetic number, because the mean of its divisors is an integer number (1130318280).

Almost surely, 2^123924203520 is an apocalyptic number.

123924203520 is a gapful number since it is divisible by the number (10) 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 123924203520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217021109760).

123924203520 is an abundant number, since it is smaller than the sum of its proper divisors (310118016000).

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

123924203520 is a wasteful number, since it uses less digits than its factorization.

123924203520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5191 (or 5171 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 123924203520 in words is "one hundred twenty-three billion, nine hundred twenty-four million, two hundred three thousand, five hundred twenty".