423221011277 has 2 divisors, whose sum is σ = 423221011278. Its totient is φ = 423221011276.

The previous prime is 423221011253. The next prime is 423221011327. The reversal of 423221011277 is 772110122324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345025837321 + 78195173956 = 587389^2 + 279634^2 .

It is a cyclic number.

It is not a de Polignac number, because 423221011277 - 2¹⁰ = 423221010253 is a prime.

It is a super-2 number, since 2×423221011277² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423221011177) 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, 211610505638 + 211610505639.

It is an arithmetic number, because the mean of its divisors is an integer number (211610505639).

Almost surely, 2^423221011277 is an apocalyptic number.

It is an amenable number.

423221011277 is a deficient number, since it is larger than the sum of its proper divisors (1).

423221011277 is an equidigital number, since it uses as much as digits as its factorization.

423221011277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The spelling of 423221011277 in words is "four hundred twenty-three billion, two hundred twenty-one million, eleven thousand, two hundred seventy-seven".