123502250400 has 144 divisors (see below), whose sum is σ = 402540985728. Its totient is φ = 32889600000.

The previous prime is 123502250371. The next prime is 123502250419. The reversal of 123502250400 is 4052205321.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1768140 + ... + 1836660.

It is an arithmetic number, because the mean of its divisors is an integer number (2795423512).

Almost surely, 2^123502250400 is an apocalyptic number.

123502250400 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 123502250400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201270492864).

123502250400 is an abundant number, since it is smaller than the sum of its proper divisors (279038735328).

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

123502250400 is a wasteful number, since it uses less digits than its factorization.

123502250400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69295 (or 69282 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 123502250400 its reverse (4052205321), we get a palindrome (127554455721).

The spelling of 123502250400 in words is "one hundred twenty-three billion, five hundred two million, two hundred fifty thousand, four hundred".