12141440111 has 4 divisors (see below), whose sum is σ = 12399768672. Its totient is φ = 11883111552.

The previous prime is 12141440107. The next prime is 12141440117. The reversal of 12141440111 is 11104414121.

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 12141440111 - 2² = 12141440107 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 (12141440117) 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, 129164210 + ... + 129164303.

It is an arithmetic number, because the mean of its divisors is an integer number (3099942168).

Almost surely, 2^12141440111 is an apocalyptic number.

12141440111 is a deficient number, since it is larger than the sum of its proper divisors (258328561).

12141440111 is an equidigital number, since it uses as much as digits as its factorization.

12141440111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258328560.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12141440111 its reverse (11104414121), we get a palindrome (23245854232).

The spelling of 12141440111 in words is "twelve billion, one hundred forty-one million, four hundred forty thousand, one hundred eleven".