320223222331 has 4 divisors (see below), whose sum is σ = 334145971152. Its totient is φ = 306300473512.

The previous prime is 320223222287. The next prime is 320223222353. The reversal of 320223222331 is 133222322023.

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 320223222331 - 2⁷ = 320223222203 is a prime.

It is a super-2 number, since 2×320223222331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320223222296 and 320223222305.

It is not an unprimeable number, because it can be changed into a prime (320223232331) 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, 6961374376 + ... + 6961374421.

It is an arithmetic number, because the mean of its divisors is an integer number (83536492788).

Almost surely, 2^320223222331 is an apocalyptic number.

320223222331 is a deficient number, since it is larger than the sum of its proper divisors (13922748821).

320223222331 is a wasteful number, since it uses less digits than its factorization.

320223222331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13922748820.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 320223222331 its reverse (133222322023), we get a palindrome (453445544354).

The spelling of 320223222331 in words is "three hundred twenty billion, two hundred twenty-three million, two hundred twenty-two thousand, three hundred thirty-one".