320000220810233 has 2 divisors, whose sum is σ = 320000220810234. Its totient is φ = 320000220810232.

The previous prime is 320000220810107. The next prime is 320000220810239. The reversal of 320000220810233 is 332018022000023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 286998734635369 + 33001486174864 = 16941037^2 + 5744692^2 .

It is a cyclic number.

It is not a de Polignac number, because 320000220810233 - 2¹⁸ = 320000220548089 is a prime.

It is not a weakly prime, because it can be changed into another prime (320000220810239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160000110405116 + 160000110405117.

It is an arithmetic number, because the mean of its divisors is an integer number (160000110405117).

Almost surely, 2^{320000220810233} is an apocalyptic number.

It is an amenable number.

320000220810233 is a deficient number, since it is larger than the sum of its proper divisors (1).

320000220810233 is an equidigital number, since it uses as much as digits as its factorization.

320000220810233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 320000220810233 its reverse (332018022000023), we get a palindrome (652018242810256).

The spelling of 320000220810233 in words is "three hundred twenty trillion, two hundred twenty million, eight hundred ten thousand, two hundred thirty-three".