111541061143 has 2 divisors, whose sum is σ = 111541061144. Its totient is φ = 111541061142.

The previous prime is 111541061141. The next prime is 111541061153. The reversal of 111541061143 is 341160145111.

It is a weak prime.

It is an emirp because it is prime and its reverse (341160145111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111541061143 - 2¹ = 111541061141 is a prime.

Together with 111541061141, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111541061141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55770530571 + 55770530572.

It is an arithmetic number, because the mean of its divisors is an integer number (55770530572).

Almost surely, 2^111541061143 is an apocalyptic number.

111541061143 is a deficient number, since it is larger than the sum of its proper divisors (1).

111541061143 is an equidigital number, since it uses as much as digits as its factorization.

111541061143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 28.

The spelling of 111541061143 in words is "one hundred eleven billion, five hundred forty-one million, sixty-one thousand, one hundred forty-three".