40321311 has 4 divisors (see below), whose sum is σ = 53761752. Its totient is φ = 26880872.

The previous prime is 40321291. The next prime is 40321313. The reversal of 40321311 is 11312304.

40321311 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 a cyclic number.

It is not a de Polignac number, because 40321311 - 2⁵ = 40321279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40321313) 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, 6720216 + ... + 6720221.

It is an arithmetic number, because the mean of its divisors is an integer number (13440438).

Almost surely, 2^40321311 is an apocalyptic number.

40321311 is a deficient number, since it is larger than the sum of its proper divisors (13440441).

40321311 is a wasteful number, since it uses less digits than its factorization.

40321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13440440.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 40321311 is about 6349.9063772626. The cubic root of 40321311 is about 342.9084717547.

Adding to 40321311 its reverse (11312304), we get a palindrome (51633615).

The spelling of 40321311 in words is "forty million, three hundred twenty-one thousand, three hundred eleven".