12340343143040 has 128 divisors (see below), whose sum is σ = 32623919104320. Its totient is φ = 4425926123520.

The previous prime is 12340343143027. The next prime is 12340343143061. The reversal of 12340343143040 is 4034134304321.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 12340343142988 and 12340343143006.

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, 11492174 + ... + 12520013.

Almost surely, 2^{12340343143040} is an apocalyptic number.

12340343143040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12340343143040 is an abundant number, since it is smaller than the sum of its proper divisors (20283575961280).

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

12340343143040 is a wasteful number, since it uses less digits than its factorization.

12340343143040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24012290 (or 24012278 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 12340343143040 its reverse (4034134304321), we get a palindrome (16374477447361).

The spelling of 12340343143040 in words is "twelve trillion, three hundred forty billion, three hundred forty-three million, one hundred forty-three thousand, forty".