12132230312 has 8 divisors (see below), whose sum is σ = 22747931850. Its totient is φ = 6066115152.

The previous prime is 12132230309. The next prime is 12132230323. The reversal of 12132230312 is 21303223121.

It can be written as a sum of positive squares in only one way, i.e., 8859703876 + 3272526436 = 94126^2 + 57206^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758264387 + ... + 758264402.

Almost surely, 2^12132230312 is an apocalyptic number.

It is an amenable number.

12132230312 is a deficient number, since it is larger than the sum of its proper divisors (10615701538).

12132230312 is a wasteful number, since it uses less digits than its factorization.

12132230312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516528795 (or 1516528791 counting only the distinct ones).

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

Adding to 12132230312 its reverse (21303223121), we get a palindrome (33435453433).

The spelling of 12132230312 in words is "twelve billion, one hundred thirty-two million, two hundred thirty thousand, three hundred twelve".