331223420444473 has 2 divisors, whose sum is σ = 331223420444474. Its totient is φ = 331223420444472.

The previous prime is 331223420444471. The next prime is 331223420444513. The reversal of 331223420444473 is 374444024322133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179362457961129 + 151860962483344 = 13392627^2 + 12323188^2 .

It is a cyclic number.

It is not a de Polignac number, because 331223420444473 - 2¹ = 331223420444471 is a prime.

It is a super-2 number, since 2×331223420444473² (a number of 30 digits) contains 22 as substring.

Together with 331223420444471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (331223420444471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165611710222236 + 165611710222237.

It is an arithmetic number, because the mean of its divisors is an integer number (165611710222237).

Almost surely, 2^{331223420444473} is an apocalyptic number.

It is an amenable number.

331223420444473 is a deficient number, since it is larger than the sum of its proper divisors (1).

331223420444473 is an equidigital number, since it uses as much as digits as its factorization.

331223420444473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4644864, while the sum is 46.

The spelling of 331223420444473 in words is "three hundred thirty-one trillion, two hundred twenty-three billion, four hundred twenty million, four hundred forty-four thousand, four hundred seventy-three".