311423 has 8 divisors (see below), whose sum is σ = 376992. Its totient is φ = 251136.

The previous prime is 311419. The next prime is 311447. The reversal of 311423 is 324113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311423 - 2² = 311419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311398 and 311407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1190 + ... + 1427.

It is an arithmetic number, because the mean of its divisors is an integer number (47124).

2³¹¹⁴²³ is an apocalyptic number.

311423 is a deficient number, since it is larger than the sum of its proper divisors (65569).

311423 is a wasteful number, since it uses less digits than its factorization.

311423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2641.

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

The square root of 311423 is about 558.0528648793. The cubic root of 311423 is about 67.7823926108.

Adding to 311423 its reverse (324113), we get a palindrome (635536).

The spelling of 311423 in words is "three hundred eleven thousand, four hundred twenty-three", and thus it is an iban number.