311093 has 4 divisors (see below), whose sum is σ = 317760. Its totient is φ = 304428.

The previous prime is 311041. The next prime is 311099. The reversal of 311093 is 390113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311099) 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, 3263 + ... + 3356.

It is an arithmetic number, because the mean of its divisors is an integer number (79440).

2³¹¹⁰⁹³ is an apocalyptic number.

It is an amenable number.

311093 is a deficient number, since it is larger than the sum of its proper divisors (6667).

311093 is an equidigital number, since it uses as much as digits as its factorization.

311093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 311093 is about 557.7571155978. The cubic root of 311093 is about 67.7584422335.

The spelling of 311093 in words is "three hundred eleven thousand, ninety-three".