123311100000 has 864 divisors, whose sum is σ = 460815505920. Its totient is φ = 28828800000.

The previous prime is 123311099999. The next prime is 123311100083. The reversal of 123311100000 is 1113321.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1560899961 + ... + 1560900039.

It is an arithmetic number, because the mean of its divisors is an integer number (533351280).

Almost surely, 2^123311100000 is an apocalyptic number.

123311100000 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 123311100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230407752960).

123311100000 is an abundant number, since it is smaller than the sum of its proper divisors (337504405920).

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

123311100000 is an equidigital number, since it uses as much as digits as its factorization.

123311100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 143 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 123311100000 its reverse (1113321), we get a palindrome (123312213321).

The spelling of 123311100000 in words is "one hundred twenty-three billion, three hundred eleven million, one hundred thousand".