12043031930 has 32 divisors (see below), whose sum is σ = 22204119168. Its totient is φ = 4700404800.

The previous prime is 12043031881. The next prime is 12043031951. The reversal of 12043031930 is 3913034021.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 12043031930.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 425315 + ... + 452745.

It is an arithmetic number, because the mean of its divisors is an integer number (693878724).

Almost surely, 2^12043031930 is an apocalyptic number.

12043031930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12043031930 is a deficient number, since it is larger than the sum of its proper divisors (10161087238).

12043031930 is a wasteful number, since it uses less digits than its factorization.

12043031930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28502.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 12043031930 its reverse (3913034021), we get a palindrome (15956065951).

The spelling of 12043031930 in words is "twelve billion, forty-three million, thirty-one thousand, nine hundred thirty".