12031021231130 has 48 divisors (see below), whose sum is σ = 24021905874120. Its totient is φ = 4334779912320.

The previous prime is 12031021231127. The next prime is 12031021231147. The reversal of 12031021231130 is 3113212013021.

It is a happy number.

12031021231130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 11991060021721 + 39961209409 = 3462811^2 + 199903^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45478169 + ... + 45741948.

Almost surely, 2^{12031021231130} is an apocalyptic number.

12031021231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031021231130 is a deficient number, since it is larger than the sum of its proper divisors (11990884642990).

12031021231130 is a wasteful number, since it uses less digits than its factorization.

12031021231130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91220255 (or 91220244 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12031021231130 its reverse (3113212013021), we get a palindrome (15144233244151).

The spelling of 12031021231130 in words is "twelve trillion, thirty-one billion, twenty-one million, two hundred thirty-one thousand, one hundred thirty".