12287305773421 has 4 divisors (see below), whose sum is σ = 14042635169632. Its totient is φ = 10531976377212.

The previous prime is 12287305773409. The next prime is 12287305773443. The reversal of 12287305773421 is 12437750378221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12287305773421 - 2⁵ = 12287305773389 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 (12287305773481) 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, 877664698095 + ... + 877664698108.

It is an arithmetic number, because the mean of its divisors is an integer number (3510658792408).

Almost surely, 2^{12287305773421} is an apocalyptic number.

It is an amenable number.

12287305773421 is a deficient number, since it is larger than the sum of its proper divisors (1755329396211).

12287305773421 is an equidigital number, since it uses as much as digits as its factorization.

12287305773421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755329396210.

The product of its (nonzero) digits is 3951360, while the sum is 52.

The spelling of 12287305773421 in words is "twelve trillion, two hundred eighty-seven billion, three hundred five million, seven hundred seventy-three thousand, four hundred twenty-one".