144171116111 has 4 divisors (see below), whose sum is σ = 157277581224. Its totient is φ = 131064651000.

The previous prime is 144171116099. The next prime is 144171116119. The reversal of 144171116111 is 111611171441.

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 144171116111 - 2¹⁰ = 144171115087 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 (144171116119) 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, 6553232540 + ... + 6553232561.

It is an arithmetic number, because the mean of its divisors is an integer number (39319395306).

Almost surely, 2^144171116111 is an apocalyptic number.

144171116111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

144171116111 is a deficient number, since it is larger than the sum of its proper divisors (13106465113).

144171116111 is a wasteful number, since it uses less digits than its factorization.

144171116111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13106465112.

The product of its digits is 672, while the sum is 29.

Adding to 144171116111 its reverse (111611171441), we get a palindrome (255782287552).

The spelling of 144171116111 in words is "one hundred forty-four billion, one hundred seventy-one million, one hundred sixteen thousand, one hundred eleven".