12340142424 has 64 divisors (see below), whose sum is σ = 34611033600. Its totient is φ = 4073437728.

The previous prime is 12340142371. The next prime is 12340142429. The reversal of 12340142424 is 42424104321.

12340142424 is a `hidden beast` number, since 1 + 234 + 0 + 1 + 4 + 2 + 424 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12340142429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 255084 + ... + 299579.

It is an arithmetic number, because the mean of its divisors is an integer number (540797400).

Almost surely, 2^12340142424 is an apocalyptic number.

It is an amenable number.

12340142424 is an abundant number, since it is smaller than the sum of its proper divisors (22270891176).

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

12340142424 is a wasteful number, since it uses less digits than its factorization.

12340142424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554781 (or 554771 counting only the distinct ones).

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

Adding to 12340142424 its reverse (42424104321), we get a palindrome (54764246745).

The spelling of 12340142424 in words is "twelve billion, three hundred forty million, one hundred forty-two thousand, four hundred twenty-four".