12031123200 has 108 divisors (see below), whose sum is σ = 39705276408. Its totient is φ = 3208294400.

The previous prime is 12031123087. The next prime is 12031123231. The reversal of 12031123200 is 232113021.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12031123200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294111 + ... + 332510.

Almost surely, 2^12031123200 is an apocalyptic number.

12031123200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12031123200 is an abundant number, since it is smaller than the sum of its proper divisors (27674153208).

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

12031123200 is an equidigital number, since it uses as much as digits as its factorization.

12031123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626650 (or 626631 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12031123200 its reverse (232113021), we get a palindrome (12263236221).

The spelling of 12031123200 in words is "twelve billion, thirty-one million, one hundred twenty-three thousand, two hundred".