12434223403240 has 64 divisors (see below), whose sum is σ = 28058923791360. Its totient is φ = 4959131112960.

The previous prime is 12434223403171. The next prime is 12434223403249. The reversal of 12434223403240 is 4230432243421.

It is a junction number, because it is equal to n+sod(n) for n = 12434223403196 and 12434223403205.

It is not an unprimeable number, because it can be changed into a prime (12434223403249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74505729 + ... + 74672431.

It is an arithmetic number, because the mean of its divisors is an integer number (438420684240).

Almost surely, 2^{12434223403240} is an apocalyptic number.

12434223403240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12434223403240 is an abundant number, since it is smaller than the sum of its proper divisors (15624700388120).

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

12434223403240 is a wasteful number, since it uses less digits than its factorization.

12434223403240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172162 (or 172158 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 12434223403240 its reverse (4230432243421), we get a palindrome (16664655646661).

The spelling of 12434223403240 in words is "twelve trillion, four hundred thirty-four billion, two hundred twenty-three million, four hundred three thousand, two hundred forty".