311044423 has 4 divisors (see below), whose sum is σ = 311181328. Its totient is φ = 310907520.

The previous prime is 311044411. The next prime is 311044441. The reversal of 311044423 is 324440113.

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 311044423 - 2²⁵ = 277489991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311044394 and 311044403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311044523) 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, 64986 + ... + 69607.

It is an arithmetic number, because the mean of its divisors is an integer number (77795332).

Almost surely, 2^311044423 is an apocalyptic number.

311044423 is a deficient number, since it is larger than the sum of its proper divisors (136905).

311044423 is a wasteful number, since it uses less digits than its factorization.

311044423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136904.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 311044423 is about 17636.4515421895. The cubic root of 311044423 is about 677.5491523550.

Adding to 311044423 its reverse (324440113), we get a palindrome (635484536).

The spelling of 311044423 in words is "three hundred eleven million, forty-four thousand, four hundred twenty-three".