12126452263 has 4 divisors (see below), whose sum is σ = 12145023288. Its totient is φ = 12107881240.

The previous prime is 12126452243. The next prime is 12126452279. The reversal of 12126452263 is 36225462121.

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 12126452263 - 2¹⁷ = 12126321191 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 (12126452243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9284533 + ... + 9285838.

It is an arithmetic number, because the mean of its divisors is an integer number (3036255822).

Almost surely, 2^12126452263 is an apocalyptic number.

12126452263 is a deficient number, since it is larger than the sum of its proper divisors (18571025).

12126452263 is an equidigital number, since it uses as much as digits as its factorization.

12126452263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18571024.

The product of its digits is 34560, while the sum is 34.

The spelling of 12126452263 in words is "twelve billion, one hundred twenty-six million, four hundred fifty-two thousand, two hundred sixty-three".