12042440431127 has 2 divisors, whose sum is σ = 12042440431128. Its totient is φ = 12042440431126.

The previous prime is 12042440431117. The next prime is 12042440431141. The reversal of 12042440431127 is 72113404424021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12042440431127 - 2³⁴ = 12025260561943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12042440431117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021220215563 + 6021220215564.

It is an arithmetic number, because the mean of its divisors is an integer number (6021220215564).

Almost surely, 2^{12042440431127} is an apocalyptic number.

12042440431127 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042440431127 is an equidigital number, since it uses as much as digits as its factorization.

12042440431127 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 43008, while the sum is 35.

Adding to 12042440431127 its reverse (72113404424021), we get a palindrome (84155844855148).

The spelling of 12042440431127 in words is "twelve trillion, forty-two billion, four hundred forty million, four hundred thirty-one thousand, one hundred twenty-seven".