1000001111143 has 2 divisors, whose sum is σ = 1000001111144. Its totient is φ = 1000001111142.

The previous prime is 1000001111089. The next prime is 1000001111159. The reversal of 1000001111143 is 3411111000001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1000001111143 - 2¹³ = 1000001102951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000001111743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500000555571 + 500000555572.

It is an arithmetic number, because the mean of its divisors is an integer number (500000555572).

Almost surely, 2^{1000001111143} is an apocalyptic number.

1000001111143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000001111143 is an equidigital number, since it uses as much as digits as its factorization.

1000001111143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1000001111143 its reverse (3411111000001), we get a palindrome (4411112111144).

The spelling of 1000001111143 in words is "one trillion, one million, one hundred eleven thousand, one hundred forty-three".