11143112287 has 2 divisors, whose sum is σ = 11143112288. Its totient is φ = 11143112286.

The previous prime is 11143112263. The next prime is 11143112293. The reversal of 11143112287 is 78221134111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11143112287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11143112237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5571556143 + 5571556144.

It is an arithmetic number, because the mean of its divisors is an integer number (5571556144).

Almost surely, 2^11143112287 is an apocalyptic number.

11143112287 is a deficient number, since it is larger than the sum of its proper divisors (1).

11143112287 is an equidigital number, since it uses as much as digits as its factorization.

11143112287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 31.

Adding to 11143112287 its reverse (78221134111), we get a palindrome (89364246398).

The spelling of 11143112287 in words is "eleven billion, one hundred forty-three million, one hundred twelve thousand, two hundred eighty-seven".