12340324432340 has 48 divisors (see below), whose sum is σ = 26740518822864. Its totient is φ = 4780584960000.

The previous prime is 12340324432339. The next prime is 12340324432369. The reversal of 12340324432340 is 4323442304321.

It can be written as a sum of positive squares in 8 ways, for example, as 10127604496 + 12330196827844 = 100636^2 + 3511438^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12340324432340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54811661 + ... + 55036340.

It is an arithmetic number, because the mean of its divisors is an integer number (557094142143).

Almost surely, 2^{12340324432340} is an apocalyptic number.

12340324432340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340324432340 is an abundant number, since it is smaller than the sum of its proper divisors (14400194390524).

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

12340324432340 is a wasteful number, since it uses less digits than its factorization.

12340324432340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109848188 (or 109848186 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 12340324432340 its reverse (4323442304321), we get a palindrome (16663766736661).

The spelling of 12340324432340 in words is "twelve trillion, three hundred forty billion, three hundred twenty-four million, four hundred thirty-two thousand, three hundred forty".