123132120111000 has 2560 divisors, whose sum is σ = 591356364318720. Its totient is φ = 23067846144000.

The previous prime is 123132120110981. The next prime is 123132120111017. The reversal of 123132120111000 is 111021231321.

123132120111000 is a `hidden beast` number, since 1 + 2 + 31 + 321 + 201 + 110 + 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 639 ways as a sum of consecutive naturals, for example, 3486465342 + ... + 3486500658.

It is an arithmetic number, because the mean of its divisors is an integer number (230998579812).

Almost surely, 2^{123132120111000} is an apocalyptic number.

123132120111000 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 123132120111000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295678182159360).

123132120111000 is an abundant number, since it is smaller than the sum of its proper divisors (468224244207720).

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

123132120111000 is a wasteful number, since it uses less digits than its factorization.

123132120111000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35424 (or 35401 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 123132120111000 its reverse (111021231321), we get a palindrome (123243141342321).

The spelling of 123132120111000 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, one hundred twenty million, one hundred eleven thousand".