12132342243 has 40 divisors (see below), whose sum is σ = 21613287168. Its totient is φ = 6631335216.

The previous prime is 12132342239. The next prime is 12132342359. The reversal of 12132342243 is 34224323121.

12132342243 is a `hidden beast` number, since 1 + 213 + 23 + 422 + 4 + 3 = 666.

It is not a de Polignac number, because 12132342243 - 2² = 12132342239 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (12132342223) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 452121 + ... + 478202.

Almost surely, 2^12132342243 is an apocalyptic number.

12132342243 is a deficient number, since it is larger than the sum of its proper divisors (9480944925).

12132342243 is an equidigital number, since it uses as much as digits as its factorization.

12132342243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930365 (or 930356 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

Adding to 12132342243 its reverse (34224323121), we get a palindrome (46356665364).

The spelling of 12132342243 in words is "twelve billion, one hundred thirty-two million, three hundred forty-two thousand, two hundred forty-three".