11111013143 has 2 divisors, whose sum is σ = 11111013144. Its totient is φ = 11111013142.

The previous prime is 11111013127. The next prime is 11111013157. The reversal of 11111013143 is 34131011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111013143 - 2⁴ = 11111013127 is a prime.

It is a super-2 number, since 2×11111013143² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111013113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555506571 + 5555506572.

It is an arithmetic number, because the mean of its divisors is an integer number (5555506572).

Almost surely, 2^11111013143 is an apocalyptic number.

11111013143 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111013143 is an equidigital number, since it uses as much as digits as its factorization.

11111013143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11111013143 its reverse (34131011111), we get a palindrome (45242024254).

The spelling of 11111013143 in words is "eleven billion, one hundred eleven million, thirteen thousand, one hundred forty-three".