40112111 has 4 divisors (see below), whose sum is σ = 43197672. Its totient is φ = 37026552.

The previous prime is 40112081. The next prime is 40112117. The reversal of 40112111 is 11121104.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40112111 - 2¹⁰ = 40111087 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40112092 and 40112101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40112117) 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, 1542761 + ... + 1542786.

It is an arithmetic number, because the mean of its divisors is an integer number (10799418).

Almost surely, 2^40112111 is an apocalyptic number.

40112111 is a deficient number, since it is larger than the sum of its proper divisors (3085561).

40112111 is a wasteful number, since it uses less digits than its factorization.

40112111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3085560.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 40112111 is about 6333.4122714379. The cubic root of 40112111 is about 342.3144031483.

Adding to 40112111 its reverse (11121104), we get a palindrome (51233215).

The spelling of 40112111 in words is "forty million, one hundred twelve thousand, one hundred eleven".