12043213130 has 32 divisors (see below), whose sum is σ = 23445558864. Its totient is φ = 4427629056.

The previous prime is 12043213123. The next prime is 12043213153. The reversal of 12043213130 is 3131234021.

It can be written as a sum of positive squares in 8 ways, for example, as 1236155281 + 10807057849 = 35159^2 + 103957^2 .

It is a Curzon number.

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, 168509 + ... + 229088.

Almost surely, 2^12043213130 is an apocalyptic number.

12043213130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12043213130 is a deficient number, since it is larger than the sum of its proper divisors (11402345734).

12043213130 is a wasteful number, since it uses less digits than its factorization.

12043213130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397850.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12043213130 its reverse (3131234021), we get a palindrome (15174447151).

The spelling of 12043213130 in words is "twelve billion, forty-three million, two hundred thirteen thousand, one hundred thirty".