12321012231343 has 4 divisors (see below), whose sum is σ = 12321091006560. Its totient is φ = 12320933456128.

The previous prime is 12321012231301. The next prime is 12321012231401. The reversal of 12321012231343 is 34313221012321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12321012231343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321012231743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39152530 + ... + 39465967.

It is an arithmetic number, because the mean of its divisors is an integer number (3080272751640).

Almost surely, 2^{12321012231343} is an apocalyptic number.

12321012231343 is a deficient number, since it is larger than the sum of its proper divisors (78775217).

12321012231343 is an equidigital number, since it uses as much as digits as its factorization.

12321012231343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78775216.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 12321012231343 its reverse (34313221012321), we get a palindrome (46634233243664).

The spelling of 12321012231343 in words is "twelve trillion, three hundred twenty-one billion, twelve million, two hundred thirty-one thousand, three hundred forty-three".