12340235424 has 48 divisors (see below), whose sum is σ = 35337949920. Its totient is φ = 3739464960.

The previous prime is 12340235359. The next prime is 12340235431. The reversal of 12340235424 is 42453204321.

It is a tau number, because it is divible by the number of its divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 12340235391 and 12340235400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5841859 + ... + 5843970.

It is an arithmetic number, because the mean of its divisors is an integer number (736207290).

Almost surely, 2^12340235424 is an apocalyptic number.

It is an amenable number.

12340235424 is an abundant number, since it is smaller than the sum of its proper divisors (22997714496).

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

12340235424 is a wasteful number, since it uses less digits than its factorization.

12340235424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11685853 (or 11685845 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 12340235424 its reverse (42453204321), we get a palindrome (54793439745).

The spelling of 12340235424 in words is "twelve billion, three hundred forty million, two hundred thirty-five thousand, four hundred twenty-four".