12315134200 has 96 divisors (see below), whose sum is σ = 29693077200. Its totient is φ = 4744463360.

The previous prime is 12315134189. The next prime is 12315134233. The reversal of 12315134200 is 243151321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2567004 + ... + 2571796.

Almost surely, 2^12315134200 is an apocalyptic number.

12315134200 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 12315134200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14846538600).

12315134200 is an abundant number, since it is smaller than the sum of its proper divisors (17377943000).

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

12315134200 is a wasteful number, since it uses less digits than its factorization.

12315134200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281 (or 5272 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 12315134200 its reverse (243151321), we get a palindrome (12558285521).

The spelling of 12315134200 in words is "twelve billion, three hundred fifteen million, one hundred thirty-four thousand, two hundred".