12304149820 has 12 divisors (see below), whose sum is σ = 25838714664. Its totient is φ = 4921659920.

The previous prime is 12304149799. The next prime is 12304149821. The reversal of 12304149820 is 2894140321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304149821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307603726 + ... + 307603765.

It is an arithmetic number, because the mean of its divisors is an integer number (2153226222).

Almost surely, 2^12304149820 is an apocalyptic number.

12304149820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304149820 is an abundant number, since it is smaller than the sum of its proper divisors (13534564844).

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

12304149820 is a wasteful number, since it uses less digits than its factorization.

12304149820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615207500 (or 615207498 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 12304149820 in words is "twelve billion, three hundred four million, one hundred forty-nine thousand, eight hundred twenty".