12340424142 has 16 divisors (see below), whose sum is σ = 27423164880. Its totient is φ = 4113474696.

The previous prime is 12340424077. The next prime is 12340424197. The reversal of 12340424142 is 24142404321.

12340424142 is a `hidden beast` number, since 1 + 234 + 0 + 424 + 1 + 4 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114263133 + ... + 114263240.

It is an arithmetic number, because the mean of its divisors is an integer number (1713947805).

Almost surely, 2^12340424142 is an apocalyptic number.

12340424142 is an abundant number, since it is smaller than the sum of its proper divisors (15082740738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12340424142 is a wasteful number, since it uses less digits than its factorization.

12340424142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228526384 (or 228526378 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 12340424142 its reverse (24142404321), we get a palindrome (36482828463).

The spelling of 12340424142 in words is "twelve billion, three hundred forty million, four hundred twenty-four thousand, one hundred forty-two".