111082081 has 4 divisors (see below), whose sum is σ = 121180464. Its totient is φ = 100983700.

The previous prime is 111082067. The next prime is 111082091. The reversal of 111082081 is 180280111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 111082081 - 2¹⁹ = 110557793 is a prime.

It is a super-2 number, since 2×111082081² = 24678457438581122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111082001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5049175 + ... + 5049196.

It is an arithmetic number, because the mean of its divisors is an integer number (30295116).

Almost surely, 2^111082081 is an apocalyptic number.

111082081 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111082081 is a deficient number, since it is larger than the sum of its proper divisors (10098383).

111082081 is a wasteful number, since it uses less digits than its factorization.

111082081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10098382.

The product of its (nonzero) digits is 128, while the sum is 22.

The square root of 111082081 is about 10539.5484248615. The cubic root of 111082081 is about 480.7079844570.

The spelling of 111082081 in words is "one hundred eleven million, eighty-two thousand, eighty-one".