111481371 has 12 divisors (see below), whose sum is σ = 161550480. Its totient is φ = 74080080.

The previous prime is 111481369. The next prime is 111481387. The reversal of 111481371 is 173184111.

111481371 is a `hidden beast` number, since 111 + 481 + 3 + 71 = 666.

It is not a de Polignac number, because 111481371 - 2¹ = 111481369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111481171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17116 + ... + 22713.

It is an arithmetic number, because the mean of its divisors is an integer number (13462540).

Almost surely, 2^111481371 is an apocalyptic number.

111481371 is a deficient number, since it is larger than the sum of its proper divisors (50069109).

111481371 is a wasteful number, since it uses less digits than its factorization.

111481371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40146 (or 40143 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 111481371 is about 10558.4738954074. The cubic root of 111481371 is about 481.2832718662.

The spelling of 111481371 in words is "one hundred eleven million, four hundred eighty-one thousand, three hundred seventy-one".