1111142344143 has 16 divisors (see below), whose sum is σ = 1595630969856. Its totient is φ = 683717964000.

The previous prime is 1111142344099. The next prime is 1111142344153. The reversal of 1111142344143 is 3414432411111.

It is not a de Polignac number, because 1111142344143 - 2¹⁴ = 1111142327759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1111142344143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111142344153) 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, 852483 + ... + 1717268.

It is an arithmetic number, because the mean of its divisors is an integer number (99726935616).

Almost surely, 2^{1111142344143} is an apocalyptic number.

1111142344143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1111142344143 is a deficient number, since it is larger than the sum of its proper divisors (484488625713).

1111142344143 is a wasteful number, since it uses less digits than its factorization.

1111142344143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2580854.

The product of its digits is 4608, while the sum is 30.

Adding to 1111142344143 its reverse (3414432411111), we get a palindrome (4525574755254).

The spelling of 1111142344143 in words is "one trillion, one hundred eleven billion, one hundred forty-two million, three hundred forty-four thousand, one hundred forty-three".