12104311100 has 144 divisors (see below), whose sum is σ = 32561040960. Its totient is φ = 3810508800.

The previous prime is 12104311099. The next prime is 12104311123. The reversal of 12104311100 is 111340121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 475496 + ... + 500304.

It is an arithmetic number, because the mean of its divisors is an integer number (226118340).

Almost surely, 2^12104311100 is an apocalyptic number.

12104311100 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 12104311100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16280520480).

12104311100 is an abundant number, since it is smaller than the sum of its proper divisors (20456729860).

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

12104311100 is a wasteful number, since it uses less digits than its factorization.

12104311100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24888 (or 24881 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12104311100 its reverse (111340121), we get a palindrome (12215651221).

The spelling of 12104311100 in words is "twelve billion, one hundred four million, three hundred eleven thousand, one hundred".