123111330000 has 200 divisors, whose sum is σ = 405880176768. Its totient is φ = 32130816000.

The previous prime is 123111329933. The next prime is 123111330107. The reversal of 123111330000 is 33111321.

It is a tau number, because it is divible by the number of its divisors (200).

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 39 ways as a sum of consecutive naturals, for example, 1366344 + ... + 1453656.

Almost surely, 2^123111330000 is an apocalyptic number.

123111330000 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 123111330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202940088384).

123111330000 is an abundant number, since it is smaller than the sum of its proper divisors (282768846768).

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

123111330000 is an equidigital number, since it uses as much as digits as its factorization.

123111330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87391 (or 87370 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 123111330000 its reverse (33111321), we get a palindrome (123144441321).

The spelling of 123111330000 in words is "one hundred twenty-three billion, one hundred eleven million, three hundred thirty thousand".