11231201143 has 2 divisors, whose sum is σ = 11231201144. Its totient is φ = 11231201142.

The previous prime is 11231201099. The next prime is 11231201153. The reversal of 11231201143 is 34110213211.

It is a strong prime.

It is an emirp because it is prime and its reverse (34110213211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11231201143 is a prime.

It is a super-2 number, since 2×11231201143² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11231201143.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11231201153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5615600571 + 5615600572.

It is an arithmetic number, because the mean of its divisors is an integer number (5615600572).

Almost surely, 2^11231201143 is an apocalyptic number.

11231201143 is a deficient number, since it is larger than the sum of its proper divisors (1).

11231201143 is an equidigital number, since it uses as much as digits as its factorization.

11231201143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11231201143 its reverse (34110213211), we get a palindrome (45341414354).

The spelling of 11231201143 in words is "eleven billion, two hundred thirty-one million, two hundred one thousand, one hundred forty-three".