12342424342 has 4 divisors (see below), whose sum is σ = 18513636516. Its totient is φ = 6171212170.

The previous prime is 12342424319. The next prime is 12342424349. The reversal of 12342424342 is 24342424321.

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

It is a super-4 number, since 4×12342424342⁴ (a number of 41 digits) contains 4444 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12342424349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3085606084 + ... + 3085606087.

It is an arithmetic number, because the mean of its divisors is an integer number (4628409129).

Almost surely, 2^12342424342 is an apocalyptic number.

12342424342 is a deficient number, since it is larger than the sum of its proper divisors (6171212174).

12342424342 is an equidigital number, since it uses as much as digits as its factorization.

12342424342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171212173.

The product of its digits is 36864, while the sum is 31.

Adding to 12342424342 its reverse (24342424321), we get a palindrome (36684848663).

The spelling of 12342424342 in words is "twelve billion, three hundred forty-two million, four hundred twenty-four thousand, three hundred forty-two".