123485203800 has 432 divisors, whose sum is σ = 487862692200. Its totient is φ = 27906278400.

The previous prime is 123485203771. The next prime is 123485203813. The reversal of 123485203800 is 8302584321.

123485203800 is a `hidden beast` number, since 12 + 3 + 48 + 520 + 3 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 7841935 + ... + 7857665.

Almost surely, 2^123485203800 is an apocalyptic number.

123485203800 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 123485203800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243931346100).

123485203800 is an abundant number, since it is smaller than the sum of its proper divisors (364377488400).

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

123485203800 is a wasteful number, since it uses less digits than its factorization.

123485203800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15856 (or 15837 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 123485203800 in words is "one hundred twenty-three billion, four hundred eighty-five million, two hundred three thousand, eight hundred".