123299489280000 has 3120 divisors, whose sum is σ = 489042740229120. Its totient is φ = 27358003200000.

The previous prime is 123299489279947. The next prime is 123299489280007. The reversal of 123299489280000 is 82984992321.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123299489280007) by changing a digit.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 1385387519956 + ... + 1385387520044.

Almost surely, 2^{123299489280000} is an apocalyptic number.

123299489280000 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 123299489280000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244521370114560).

123299489280000 is an abundant number, since it is smaller than the sum of its proper divisors (365743250949120).

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

123299489280000 is an equidigital number, since it uses as much as digits as its factorization.

123299489280000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 57.

The spelling of 123299489280000 in words is "one hundred twenty-three trillion, two hundred ninety-nine billion, four hundred eighty-nine million, two hundred eighty thousand".