40111023 has 4 divisors (see below), whose sum is σ = 53481368. Its totient is φ = 26740680.

The previous prime is 40111009. The next prime is 40111051. The reversal of 40111023 is 32011104.

It is a happy number.

40111023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40111023 - 2¹⁶ = 40045487 is a prime.

It is a super-2 number, since 2×40111023² = 3217788332213058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6685168 + ... + 6685173.

It is an arithmetic number, because the mean of its divisors is an integer number (13370342).

Almost surely, 2^40111023 is an apocalyptic number.

40111023 is a deficient number, since it is larger than the sum of its proper divisors (13370345).

40111023 is a wasteful number, since it uses less digits than its factorization.

40111023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13370344.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 40111023 is about 6333.3263771892. The cubic root of 40111023 is about 342.3113081442.

Adding to 40111023 its reverse (32011104), we get a palindrome (72122127).

The spelling of 40111023 in words is "forty million, one hundred eleven thousand, twenty-three".