12100404312 has 96 divisors (see below), whose sum is σ = 33128390880. Its totient is φ = 3989744640.

The previous prime is 12100404271. The next prime is 12100404319. The reversal of 12100404312 is 21340400121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100404319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5132638 + ... + 5134994.

It is an arithmetic number, because the mean of its divisors is an integer number (345087405).

Almost surely, 2^12100404312 is an apocalyptic number.

12100404312 is a gapful number since it is divisible by the number (12) 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 12100404312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16564195440).

12100404312 is an abundant number, since it is smaller than the sum of its proper divisors (21027986568).

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

12100404312 is a wasteful number, since it uses less digits than its factorization.

12100404312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113 (or 3106 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12100404312 its reverse (21340400121), we get a palindrome (33440804433).

The spelling of 12100404312 in words is "twelve billion, one hundred million, four hundred four thousand, three hundred twelve".