321211320233 has 2 divisors, whose sum is σ = 321211320234. Its totient is φ = 321211320232.

The previous prime is 321211320217. The next prime is 321211320293. The reversal of 321211320233 is 332023112123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271646312809 + 49565007424 = 521197^2 + 222632^2 .

It is a cyclic number.

It is not a de Polignac number, because 321211320233 - 2⁴ = 321211320217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321211320199 and 321211320208.

It is not a weakly prime, because it can be changed into another prime (321211320293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160605660116 + 160605660117.

It is an arithmetic number, because the mean of its divisors is an integer number (160605660117).

Almost surely, 2^321211320233 is an apocalyptic number.

It is an amenable number.

321211320233 is a deficient number, since it is larger than the sum of its proper divisors (1).

321211320233 is an equidigital number, since it uses as much as digits as its factorization.

321211320233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 321211320233 its reverse (332023112123), we get a palindrome (653234432356).

The spelling of 321211320233 in words is "three hundred twenty-one billion, two hundred eleven million, three hundred twenty thousand, two hundred thirty-three".