331030221233 has 2 divisors, whose sum is σ = 331030221234. Its totient is φ = 331030221232.

The previous prime is 331030221173. The next prime is 331030221281. The reversal of 331030221233 is 332122030133.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 316853032609 + 14177188624 = 562897^2 + 119068^2 .

It is a cyclic number.

It is not a de Polignac number, because 331030221233 - 2¹⁶ = 331030155697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331030221199 and 331030221208.

It is not a weakly prime, because it can be changed into another prime (331030221433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165515110616 + 165515110617.

It is an arithmetic number, because the mean of its divisors is an integer number (165515110617).

Almost surely, 2^331030221233 is an apocalyptic number.

It is an amenable number.

331030221233 is a deficient number, since it is larger than the sum of its proper divisors (1).

331030221233 is an equidigital number, since it uses as much as digits as its factorization.

331030221233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 331030221233 its reverse (332122030133), we get a palindrome (663152251366).

The spelling of 331030221233 in words is "three hundred thirty-one billion, thirty million, two hundred twenty-one thousand, two hundred thirty-three".