12340667140 has 12 divisors (see below), whose sum is σ = 25915401036. Its totient is φ = 4936266848.

The previous prime is 12340667113. The next prime is 12340667177. The reversal of 12340667140 is 4176604321.

It can be written as a sum of positive squares in 2 ways, for example, as 2141283076 + 10199384064 = 46274^2 + 100992^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12340667096 and 12340667105.

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, 308516659 + ... + 308516698.

It is an arithmetic number, because the mean of its divisors is an integer number (2159616753).

Almost surely, 2^12340667140 is an apocalyptic number.

12340667140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340667140 is an abundant number, since it is smaller than the sum of its proper divisors (13574733896).

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

12340667140 is a wasteful number, since it uses less digits than its factorization.

12340667140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617033366 (or 617033364 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The spelling of 12340667140 in words is "twelve billion, three hundred forty million, six hundred sixty-seven thousand, one hundred forty".