12012231130 has 16 divisors (see below), whose sum is σ = 21625240680. Its totient is φ = 4804175872.

The previous prime is 12012231097. The next prime is 12012231139. The reversal of 12012231130 is 3113221021.

It can be written as a sum of positive squares in 4 ways, for example, as 10753897401 + 1258333729 = 103701^2 + 35473^2 .

It is not an unprimeable number, because it can be changed into a prime (12012231139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16315 + ... + 155854.

Almost surely, 2^12012231130 is an apocalyptic number.

12012231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12012231130 is a deficient number, since it is larger than the sum of its proper divisors (9613009550).

12012231130 is a wasteful number, since it uses less digits than its factorization.

12012231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179153.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12012231130 its reverse (3113221021), we get a palindrome (15125452151).

The spelling of 12012231130 in words is "twelve billion, twelve million, two hundred thirty-one thousand, one hundred thirty".