123512198880 has 288 divisors, whose sum is σ = 467186227200. Its totient is φ = 27320509440.

The previous prime is 123512198879. The next prime is 123512198899. The reversal of 123512198880 is 88891215321.

It is a super-3 number, since 3×123512198880³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 644421 + ... + 813819.

It is an arithmetic number, because the mean of its divisors is an integer number (1622174400).

Almost surely, 2^123512198880 is an apocalyptic number.

123512198880 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 123512198880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233593113600).

123512198880 is an abundant number, since it is smaller than the sum of its proper divisors (343674028320).

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

123512198880 is a wasteful number, since it uses less digits than its factorization.

123512198880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169462 (or 169447 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 48.

The spelling of 123512198880 in words is "one hundred twenty-three billion, five hundred twelve million, one hundred ninety-eight thousand, eight hundred eighty".