12444535111 has 4 divisors (see below), whose sum is σ = 12447606592. Its totient is φ = 12441463632.

The previous prime is 12444535069. The next prime is 12444535139. The reversal of 12444535111 is 11153544421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11153544421 = 137 ⋅81412733.

It is a cyclic number.

It is not a de Polignac number, because 12444535111 - 2⁷ = 12444534983 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 (12444535171) 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, 1529655 + ... + 1537768.

It is an arithmetic number, because the mean of its divisors is an integer number (3111901648).

Almost surely, 2^12444535111 is an apocalyptic number.

12444535111 is a deficient number, since it is larger than the sum of its proper divisors (3071481).

12444535111 is an equidigital number, since it uses as much as digits as its factorization.

12444535111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071480.

The product of its digits is 9600, while the sum is 31.

The spelling of 12444535111 in words is "twelve billion, four hundred forty-four million, five hundred thirty-five thousand, one hundred eleven".