12355777223 has 4 divisors (see below), whose sum is σ = 12356058048. Its totient is φ = 12355496400.

The previous prime is 12355777087. The next prime is 12355777249. The reversal of 12355777223 is 32277755321.

12355777223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-12355777223 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 (12355777283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58478 + ... + 167723.

It is an arithmetic number, because the mean of its divisors is an integer number (3089014512).

Almost surely, 2^12355777223 is an apocalyptic number.

12355777223 is a deficient number, since it is larger than the sum of its proper divisors (280825).

12355777223 is an equidigital number, since it uses as much as digits as its factorization.

12355777223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280824.

The product of its digits is 617400, while the sum is 44.

The spelling of 12355777223 in words is "twelve billion, three hundred fifty-five million, seven hundred seventy-seven thousand, two hundred twenty-three".