40011323 has 4 divisors (see below), whose sum is σ = 43648728. Its totient is φ = 36373920.

The previous prime is 40011311. The next prime is 40011331. The reversal of 40011323 is 32311004.

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

It is not a de Polignac number, because 40011323 - 2⁸ = 40011067 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40011298 and 40011307.

It is not an unprimeable number, because it can be changed into a prime (40011623) 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, 1818686 + ... + 1818707.

It is an arithmetic number, because the mean of its divisors is an integer number (10912182).

Almost surely, 2^40011323 is an apocalyptic number.

40011323 is a deficient number, since it is larger than the sum of its proper divisors (3637405).

40011323 is a wasteful number, since it uses less digits than its factorization.

40011323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637404.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 40011323 is about 6325.4504187449. The cubic root of 40011323 is about 342.0274563869.

Adding to 40011323 its reverse (32311004), we get a palindrome (72322327).

The spelling of 40011323 in words is "forty million, eleven thousand, three hundred twenty-three".