12342156140 has 12 divisors (see below), whose sum is σ = 25918527936. Its totient is φ = 4936862448.

The previous prime is 12342156121. The next prime is 12342156157. The reversal of 12342156140 is 4165124321.

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, 308553884 + ... + 308553923.

It is an arithmetic number, because the mean of its divisors is an integer number (2159877328).

Almost surely, 2^12342156140 is an apocalyptic number.

12342156140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12342156140 is an abundant number, since it is smaller than the sum of its proper divisors (13576371796).

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

12342156140 is a wasteful number, since it uses less digits than its factorization.

12342156140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617107816 (or 617107814 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 12342156140 in words is "twelve billion, three hundred forty-two million, one hundred fifty-six thousand, one hundred forty".