111211112141 has 2 divisors, whose sum is σ = 111211112142. Its totient is φ = 111211112140.

The previous prime is 111211112083. The next prime is 111211112143. The reversal of 111211112141 is 141211112111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105099156100 + 6111956041 = 324190^2 + 78179^2 .

It is an emirp because it is prime and its reverse (141211112111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111211112141 - 2¹⁰ = 111211111117 is a prime.

It is a super-2 number, since 2×111211112141² (a number of 23 digits) contains 22 as substring.

Together with 111211112143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111211112143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55605556070 + 55605556071.

It is an arithmetic number, because the mean of its divisors is an integer number (55605556071).

Almost surely, 2^111211112141 is an apocalyptic number.

It is an amenable number.

111211112141 is a deficient number, since it is larger than the sum of its proper divisors (1).

111211112141 is an equidigital number, since it uses as much as digits as its factorization.

111211112141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16, while the sum is 17.

Adding to 111211112141 its reverse (141211112111), we get a palindrome (252422224252).

The spelling of 111211112141 in words is "one hundred eleven billion, two hundred eleven million, one hundred twelve thousand, one hundred forty-one".