12042430427 has 2 divisors, whose sum is σ = 12042430428. Its totient is φ = 12042430426.

The previous prime is 12042430397. The next prime is 12042430481. The reversal of 12042430427 is 72403424021.

It is a weak prime.

It is an emirp because it is prime and its reverse (72403424021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12042430427 - 2⁶ = 12042430363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12042430427.

It is not a weakly prime, because it can be changed into another prime (12042430027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6021215213 + 6021215214.

It is an arithmetic number, because the mean of its divisors is an integer number (6021215214).

Almost surely, 2^12042430427 is an apocalyptic number.

12042430427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12042430427 is an equidigital number, since it uses as much as digits as its factorization.

12042430427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 29.

Adding to 12042430427 its reverse (72403424021), we get a palindrome (84445854448).

The spelling of 12042430427 in words is "twelve billion, forty-two million, four hundred thirty thousand, four hundred twenty-seven".