12442402243 has 8 divisors (see below), whose sum is σ = 12469197600. Its totient is φ = 12415628160.

The previous prime is 12442402223. The next prime is 12442402283. The reversal of 12442402243 is 34220424421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12442402243 - 2²⁵ = 12408847811 is a prime.

It is a super-2 number, since 2×12442402243² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12442402223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1743723 + ... + 1750843.

It is an arithmetic number, because the mean of its divisors is an integer number (1558649700).

Almost surely, 2^12442402243 is an apocalyptic number.

12442402243 is a deficient number, since it is larger than the sum of its proper divisors (26795357).

12442402243 is an equidigital number, since it uses as much as digits as its factorization.

12442402243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10637.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 12442402243 its reverse (34220424421), we get a palindrome (46662826664).

The spelling of 12442402243 in words is "twelve billion, four hundred forty-two million, four hundred two thousand, two hundred forty-three".