12042426525434 has 4 divisors (see below), whose sum is σ = 18063639788154. Its totient is φ = 6021213262716.

The previous prime is 12042426525433. The next prime is 12042426525469. The reversal of 12042426525434 is 43452562424021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11996504178409 + 45922347025 = 3463597^2 + 214295^2 .

It is not an unprimeable number, because it can be changed into a prime (12042426525433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3010606631357 + ... + 3010606631360.

Almost surely, 2^{12042426525434} is an apocalyptic number.

12042426525434 is a deficient number, since it is larger than the sum of its proper divisors (6021213262720).

12042426525434 is an equidigital number, since it uses as much as digits as its factorization.

12042426525434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6021213262719.

The product of its (nonzero) digits is 1843200, while the sum is 44.

Adding to 12042426525434 its reverse (43452562424021), we get a palindrome (55494988949455).

The spelling of 12042426525434 in words is "twelve trillion, forty-two billion, four hundred twenty-six million, five hundred twenty-five thousand, four hundred thirty-four".