12312342340 has 24 divisors (see below), whose sum is σ = 26097567552. Its totient is φ = 4878908640.

The previous prime is 12312342337. The next prime is 12312342389. The reversal of 12312342340 is 4324321321.

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, 2874576 + ... + 2878855.

It is an arithmetic number, because the mean of its divisors is an integer number (1087398648).

Almost surely, 2^12312342340 is an apocalyptic number.

12312342340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312342340 is an abundant number, since it is smaller than the sum of its proper divisors (13785225212).

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

12312342340 is a wasteful number, since it uses less digits than its factorization.

12312342340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5753547 (or 5753545 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12312342340 its reverse (4324321321), we get a palindrome (16636663661).

The spelling of 12312342340 in words is "twelve billion, three hundred twelve million, three hundred forty-two thousand, three hundred forty".