12440134127 has 2 divisors, whose sum is σ = 12440134128. Its totient is φ = 12440134126.

The previous prime is 12440134079. The next prime is 12440134153. The reversal of 12440134127 is 72143104421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12440134127 - 2¹⁴ = 12440117743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12440134127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12440134627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6220067063 + 6220067064.

It is an arithmetic number, because the mean of its divisors is an integer number (6220067064).

Almost surely, 2^12440134127 is an apocalyptic number.

12440134127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440134127 is an equidigital number, since it uses as much as digits as its factorization.

12440134127 is an evil number, because the sum of its binary digits is even.

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

Adding to 12440134127 its reverse (72143104421), we get a palindrome (84583238548).

The spelling of 12440134127 in words is "twelve billion, four hundred forty million, one hundred thirty-four thousand, one hundred twenty-seven".