12442110511 has 4 divisors (see below), whose sum is σ = 12652993800. Its totient is φ = 12231227224.

The previous prime is 12442110491. The next prime is 12442110529. The reversal of 12442110511 is 11501124421.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11501124421 = 97 ⋅118568293.

It is a de Polignac number, because none of the positive numbers 2^k-12442110511 is a prime.

It is a super-3 number, since 3×12442110511³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12442110011) 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, 105441556 + ... + 105441673.

It is an arithmetic number, because the mean of its divisors is an integer number (3163248450).

Almost surely, 2^12442110511 is an apocalyptic number.

12442110511 is a deficient number, since it is larger than the sum of its proper divisors (210883289).

12442110511 is an equidigital number, since it uses as much as digits as its factorization.

12442110511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210883288.

The product of its (nonzero) digits is 320, while the sum is 22.

Adding to 12442110511 its reverse (11501124421), we get a palindrome (23943234932).

The spelling of 12442110511 in words is "twelve billion, four hundred forty-two million, one hundred ten thousand, five hundred eleven".