123238798544400 has 960 divisors, whose sum is σ = 504675238526976. Its totient is φ = 24960773376000.

The previous prime is 123238798544363. The next prime is 123238798544401. The reversal of 123238798544400 is 4445897832321.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is not an unprimeable number, because it can be changed into a prime (123238798544401) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 1934916555 + ... + 1934980245.

Almost surely, 2^{123238798544400} is an apocalyptic number.

123238798544400 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 123238798544400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (252337619263488).

123238798544400 is an abundant number, since it is smaller than the sum of its proper divisors (381436439982576).

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

123238798544400 is a wasteful number, since it uses less digits than its factorization.

123238798544400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64260 (or 64249 counting only the distinct ones).

The product of its (nonzero) digits is 46448640, while the sum is 60.

The spelling of 123238798544400 in words is "one hundred twenty-three trillion, two hundred thirty-eight billion, seven hundred ninety-eight million, five hundred forty-four thousand, four hundred".