321310311233 has 2 divisors, whose sum is σ = 321310311234. Its totient is φ = 321310311232.

The previous prime is 321310311221. The next prime is 321310311269. The reversal of 321310311233 is 332113013123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311204432449 + 10105878784 = 557857^2 + 100528^2 .

It is a cyclic number.

It is not a de Polignac number, because 321310311233 - 2⁶ = 321310311169 is a prime.

It is a super-2 number, since 2×321310311233² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321310311199 and 321310311208.

It is not a weakly prime, because it can be changed into another prime (321310311433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160655155616 + 160655155617.

It is an arithmetic number, because the mean of its divisors is an integer number (160655155617).

Almost surely, 2^321310311233 is an apocalyptic number.

It is an amenable number.

321310311233 is a deficient number, since it is larger than the sum of its proper divisors (1).

321310311233 is an equidigital number, since it uses as much as digits as its factorization.

321310311233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 321310311233 its reverse (332113013123), we get a palindrome (653423324356).

The spelling of 321310311233 in words is "three hundred twenty-one billion, three hundred ten million, three hundred eleven thousand, two hundred thirty-three".