320111423 has 4 divisors (see below), whose sum is σ = 320173560. Its totient is φ = 320049288.

The previous prime is 320111419. The next prime is 320111437. The reversal of 320111423 is 324111023.

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 320111423 - 2² = 320111419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320111443) 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, 22565 + ... + 33902.

It is an arithmetic number, because the mean of its divisors is an integer number (80043390).

Almost surely, 2^320111423 is an apocalyptic number.

320111423 is a deficient number, since it is larger than the sum of its proper divisors (62137).

320111423 is an equidigital number, since it uses as much as digits as its factorization.

320111423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62136.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 320111423 is about 17891.6579164705. The cubic root of 320111423 is about 684.0697572291.

Adding to 320111423 its reverse (324111023), we get a palindrome (644222446).

The spelling of 320111423 in words is "three hundred twenty million, one hundred eleven thousand, four hundred twenty-three".