12401144111 has 4 divisors (see below), whose sum is σ = 12828769800. Its totient is φ = 11973518424.

The previous prime is 12401144099. The next prime is 12401144131. The reversal of 12401144111 is 11144110421.

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 12401144111 - 2¹⁰ = 12401143087 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 (12401144131) 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, 213812801 + ... + 213812858.

It is an arithmetic number, because the mean of its divisors is an integer number (3207192450).

Almost surely, 2^12401144111 is an apocalyptic number.

12401144111 is a deficient number, since it is larger than the sum of its proper divisors (427625689).

12401144111 is an equidigital number, since it uses as much as digits as its factorization.

12401144111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427625688.

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

Adding to 12401144111 its reverse (11144110421), we get a palindrome (23545254532).

The spelling of 12401144111 in words is "twelve billion, four hundred one million, one hundred forty-four thousand, one hundred eleven".