111401211204271 has 2 divisors, whose sum is σ = 111401211204272. Its totient is φ = 111401211204270.

The previous prime is 111401211204247. The next prime is 111401211204317. The reversal of 111401211204271 is 172402112104111.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (172402112104111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111401211204271 - 2⁹ = 111401211203759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111401211204971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55700605602135 + 55700605602136.

It is an arithmetic number, because the mean of its divisors is an integer number (55700605602136).

Almost surely, 2^{111401211204271} is an apocalyptic number.

111401211204271 is a deficient number, since it is larger than the sum of its proper divisors (1).

111401211204271 is an equidigital number, since it uses as much as digits as its factorization.

111401211204271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 28.

Adding to 111401211204271 its reverse (172402112104111), we get a palindrome (283803323308382).

The spelling of 111401211204271 in words is "one hundred eleven trillion, four hundred one billion, two hundred eleven million, two hundred four thousand, two hundred seventy-one".