12299031800 has 144 divisors (see below), whose sum is σ = 31668899400. Its totient is φ = 4405408000.

The previous prime is 12299031793. The next prime is 12299031821. The reversal of 12299031800 is 813099221.

12299031800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Cunningham number, because it is equal to 110901²-1.

It is a super-2 number, since 2×12299031800² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11089646 + ... + 11090754.

Almost surely, 2^12299031800 is an apocalyptic number.

12299031800 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 12299031800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15834449700).

12299031800 is an abundant number, since it is smaller than the sum of its proper divisors (19369867600).

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

12299031800 is a wasteful number, since it uses less digits than its factorization.

12299031800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1278 (or 1198 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The spelling of 12299031800 in words is "twelve billion, two hundred ninety-nine million, thirty-one thousand, eight hundred".