123311112000 has 112 divisors (see below), whose sum is σ = 407173371072. Its totient is φ = 32882956800.

The previous prime is 123311111953. The next prime is 123311112061. The reversal of 123311112000 is 211113321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2544982 + ... + 2592981.

Almost surely, 2^123311112000 is an apocalyptic number.

123311112000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123311112000 is an abundant number, since it is smaller than the sum of its proper divisors (283862259072).

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

123311112000 is an equidigital number, since it uses as much as digits as its factorization.

123311112000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137993 (or 5137973 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 123311112000 its reverse (211113321), we get a palindrome (123522225321).

The spelling of 123311112000 in words is "one hundred twenty-three billion, three hundred eleven million, one hundred twelve thousand".