320223100231 has 2 divisors, whose sum is σ = 320223100232. Its totient is φ = 320223100230.

The previous prime is 320223100213. The next prime is 320223100289. The reversal of 320223100231 is 132001322023.

Together with previous prime (320223100213) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 320223100231 - 2²³ = 320214711623 is a prime.

It is a super-2 number, since 2×320223100231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320223100199 and 320223100208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (320223100931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160111550115 + 160111550116.

It is an arithmetic number, because the mean of its divisors is an integer number (160111550116).

Almost surely, 2^320223100231 is an apocalyptic number.

320223100231 is a deficient number, since it is larger than the sum of its proper divisors (1).

320223100231 is an equidigital number, since it uses as much as digits as its factorization.

320223100231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 320223100231 its reverse (132001322023), we get a palindrome (452224422254).

The spelling of 320223100231 in words is "three hundred twenty billion, two hundred twenty-three million, one hundred thousand, two hundred thirty-one".