311424023 has 4 divisors (see below), whose sum is σ = 311803248. Its totient is φ = 311044800.

The previous prime is 311423999. The next prime is 311424053. The reversal of 311424023 is 320424113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320424113 = 19 ⋅16864427.

It is a cyclic number.

It is not a de Polignac number, because 311424023 - 2¹⁰ = 311422999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311423986 and 311424004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311424053) 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, 188378 + ... + 190023.

It is an arithmetic number, because the mean of its divisors is an integer number (77950812).

Almost surely, 2^311424023 is an apocalyptic number.

311424023 is a deficient number, since it is larger than the sum of its proper divisors (379225).

311424023 is an equidigital number, since it uses as much as digits as its factorization.

311424023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379224.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 311424023 is about 17647.2100627833. The cubic root of 311424023 is about 677.8246683068.

Adding to 311424023 its reverse (320424113), we get a palindrome (631848136).

The spelling of 311424023 in words is "three hundred eleven million, four hundred twenty-four thousand, twenty-three".