326311 has 4 divisors (see below), whose sum is σ = 328624. Its totient is φ = 324000.

The previous prime is 326309. The next prime is 326323. The reversal of 326311 is 113623.

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

It is a 5-Lehmer number, since φ(326311) divides (326311-1)⁵.

It is a cyclic number.

It is not a de Polignac number, because 326311 - 2¹ = 326309 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326351) 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, 930 + ... + 1231.

It is an arithmetic number, because the mean of its divisors is an integer number (82156).

2³²⁶³¹¹ is an apocalyptic number.

326311 is a deficient number, since it is larger than the sum of its proper divisors (2313).

326311 is a wasteful number, since it uses less digits than its factorization.

326311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312.

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

The square root of 326311 is about 571.2363783934. The cubic root of 326311 is about 68.8457662636.

Adding to 326311 its reverse (113623), we get a palindrome (439934).

The spelling of 326311 in words is "three hundred twenty-six thousand, three hundred eleven".