123259494400 has 336 divisors, whose sum is σ = 352602003456. Its totient is φ = 41865707520.

The previous prime is 123259494359. The next prime is 123259494403. The reversal of 123259494400 is 4494952321.

It is not an unprimeable number, because it can be changed into a prime (123259494403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182066862 + ... + 182067538.

Almost surely, 2^123259494400 is an apocalyptic number.

123259494400 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 123259494400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176301001728).

123259494400 is an abundant number, since it is smaller than the sum of its proper divisors (229342509056).

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

123259494400 is an equidigital number, since it uses as much as digits as its factorization.

123259494400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 847 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 123259494400 in words is "one hundred twenty-three billion, two hundred fifty-nine million, four hundred ninety-four thousand, four hundred".