12042340055 has 4 divisors (see below), whose sum is σ = 14450808072. Its totient is φ = 9633872040.

The previous prime is 12042340043. The next prime is 12042340151. The reversal of 12042340055 is 55004324021.

It is a happy number.

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

It is not a de Polignac number, because 12042340055 - 2¹⁰ = 12042339031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204234001 + ... + 1204234010.

It is an arithmetic number, because the mean of its divisors is an integer number (3612702018).

Almost surely, 2^12042340055 is an apocalyptic number.

12042340055 is a deficient number, since it is larger than the sum of its proper divisors (2408468017).

12042340055 is an equidigital number, since it uses as much as digits as its factorization.

12042340055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408468016.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 12042340055 its reverse (55004324021), we get a palindrome (67046664076).

The spelling of 12042340055 in words is "twelve billion, forty-two million, three hundred forty thousand, fifty-five".