12265718123 has 4 divisors (see below), whose sum is σ = 12272065488. Its totient is φ = 12259370760.

The previous prime is 12265718119. The next prime is 12265718141. The reversal of 12265718123 is 32181756221.

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

It is a cyclic number.

It is not a de Polignac number, because 12265718123 - 2² = 12265718119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12265718173) 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, 3170783 + ... + 3174648.

It is an arithmetic number, because the mean of its divisors is an integer number (3068016372).

Almost surely, 2^12265718123 is an apocalyptic number.

12265718123 is a deficient number, since it is larger than the sum of its proper divisors (6347365).

12265718123 is an equidigital number, since it uses as much as digits as its factorization.

12265718123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347364.

The product of its digits is 40320, while the sum is 38.

The spelling of 12265718123 in words is "twelve billion, two hundred sixty-five million, seven hundred eighteen thousand, one hundred twenty-three".