12256273723 has 2 divisors, whose sum is σ = 12256273724. Its totient is φ = 12256273722.

The previous prime is 12256273721. The next prime is 12256273763. The reversal of 12256273723 is 32737265221.

It is an a-pointer prime, because the next prime (12256273763) can be obtained adding 12256273723 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12256273723 - 2¹ = 12256273721 is a prime.

Together with 12256273721, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12256273721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6128136861 + 6128136862.

It is an arithmetic number, because the mean of its divisors is an integer number (6128136862).

Almost surely, 2^12256273723 is an apocalyptic number.

12256273723 is a deficient number, since it is larger than the sum of its proper divisors (1).

12256273723 is an equidigital number, since it uses as much as digits as its factorization.

12256273723 is an evil number, because the sum of its binary digits is even.

The product of its digits is 211680, while the sum is 40.

The spelling of 12256273723 in words is "twelve billion, two hundred fifty-six million, two hundred seventy-three thousand, seven hundred twenty-three".