42311 has 4 divisors (see below), whose sum is σ = 43800. Its totient is φ = 40824.

The previous prime is 42307. The next prime is 42323. The reversal of 42311 is 11324.

It is a happy number.

42311 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 42311 - 2² = 42307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42292 and 42301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42331) 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, 701 + ... + 758.

It is an arithmetic number, because the mean of its divisors is an integer number (10950).

2⁴²³¹¹ is an apocalyptic number.

42311 is a deficient number, since it is larger than the sum of its proper divisors (1489).

42311 is a wasteful number, since it uses less digits than its factorization.

42311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488.

The product of its digits is 24, while the sum is 11.

The square root of 42311 is about 205.6963781888. The cubic root of 42311 is about 34.8458527122.

Adding to 42311 its reverse (11324), we get a palindrome (53635).

It can be divided in two parts, 423 and 11, that added together give a palindrome (434).

The spelling of 42311 in words is "forty-two thousand, three hundred eleven", and thus it is an iban number.