111548028271 has 2 divisors, whose sum is σ = 111548028272. Its totient is φ = 111548028270.

The previous prime is 111548028217. The next prime is 111548028289. The reversal of 111548028271 is 172820845111.

It is a happy number.

Together with previous prime (111548028217) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 111548028271 - 2⁷ = 111548028143 is a prime.

It is a super-2 number, since 2×111548028271² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111548028671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55774014135 + 55774014136.

It is an arithmetic number, because the mean of its divisors is an integer number (55774014136).

Almost surely, 2^111548028271 is an apocalyptic number.

111548028271 is a deficient number, since it is larger than the sum of its proper divisors (1).

111548028271 is an equidigital number, since it uses as much as digits as its factorization.

111548028271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 40.

The spelling of 111548028271 in words is "one hundred eleven billion, five hundred forty-eight million, twenty-eight thousand, two hundred seventy-one".