40313311 has 4 divisors (see below), whose sum is σ = 40331824. Its totient is φ = 40294800.

The previous prime is 40313281. The next prime is 40313327. The reversal of 40313311 is 11331304.

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 40313311 - 2¹¹ = 40311263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40313011) 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, 5475 + ... + 10516.

It is an arithmetic number, because the mean of its divisors is an integer number (10082956).

Almost surely, 2^40313311 is an apocalyptic number.

40313311 is a deficient number, since it is larger than the sum of its proper divisors (18513).

40313311 is a wasteful number, since it uses less digits than its factorization.

40313311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18512.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 40313311 is about 6349.2764154666. The cubic root of 40313311 is about 342.8857918603.

Adding to 40313311 its reverse (11331304), we get a palindrome (51644615).

The spelling of 40313311 in words is "forty million, three hundred thirteen thousand, three hundred eleven".