123311231100000 has 432 divisors, whose sum is σ = 438493916218176. Its totient is φ = 32868810240000.

The previous prime is 123311231099933. The next prime is 123311231100037. The reversal of 123311231100000 is 1132113321.

123311231100000 is a `hidden beast` number, since 1 + 2 + 331 + 1 + 231 + 100 + 0 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2175271657 + ... + 2175328343.

It is an arithmetic number, because the mean of its divisors is an integer number (1015032213468).

Almost surely, 2^{123311231100000} is an apocalyptic number.

123311231100000 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 123311231100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219246958109088).

123311231100000 is an abundant number, since it is smaller than the sum of its proper divisors (315182685118176).

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

123311231100000 is an equidigital number, since it uses as much as digits as its factorization.

123311231100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59145 (or 59114 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123311231100000 its reverse (1132113321), we get a palindrome (123312363213321).

The spelling of 123311231100000 in words is "one hundred twenty-three trillion, three hundred eleven billion, two hundred thirty-one million, one hundred thousand".