13444100111 has 16 divisors (see below), whose sum is σ = 15053623200. Its totient is φ = 11921121408.

The previous prime is 13444100083. The next prime is 13444100143. The reversal of 13444100111 is 11100144431.

It is a de Polignac number, because none of the positive numbers 2^k-13444100111 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 (13444100171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16241 + ... + 164778.

It is an arithmetic number, because the mean of its divisors is an integer number (940851450).

Almost surely, 2^13444100111 is an apocalyptic number.

13444100111 is a deficient number, since it is larger than the sum of its proper divisors (1609523089).

13444100111 is a wasteful number, since it uses less digits than its factorization.

13444100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181258.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 13444100111 its reverse (11100144431), we get a palindrome (24544244542).

The spelling of 13444100111 in words is "thirteen billion, four hundred forty-four million, one hundred thousand, one hundred eleven".