12132124427 has 2 divisors, whose sum is σ = 12132124428. Its totient is φ = 12132124426.

The previous prime is 12132124423. The next prime is 12132124457. The reversal of 12132124427 is 72442123121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12132124427 - 2² = 12132124423 is a prime.

It is a super-2 number, since 2×12132124427² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12132124427.

It is not a weakly prime, because it can be changed into another prime (12132124421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6066062213 + 6066062214.

It is an arithmetic number, because the mean of its divisors is an integer number (6066062214).

Almost surely, 2^12132124427 is an apocalyptic number.

12132124427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12132124427 is an equidigital number, since it uses as much as digits as its factorization.

12132124427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

Adding to 12132124427 its reverse (72442123121), we get a palindrome (84574247548).

The spelling of 12132124427 in words is "twelve billion, one hundred thirty-two million, one hundred twenty-four thousand, four hundred twenty-seven".