823420360223983 has 2 divisors, whose sum is σ = 823420360223984. Its totient is φ = 823420360223982.

The previous prime is 823420360223933. The next prime is 823420360224053. The reversal of 823420360223983 is 389322063024328.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 823420360223983 - 2⁹ = 823420360223471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (823420360223933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 411710180111991 + 411710180111992.

It is an arithmetic number, because the mean of its divisors is an integer number (411710180111992).

Almost surely, 2^{823420360223983} is an apocalyptic number.

823420360223983 is a deficient number, since it is larger than the sum of its proper divisors (1).

823420360223983 is an equidigital number, since it uses as much as digits as its factorization.

823420360223983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17915904, while the sum is 55.

The spelling of 823420360223983 in words is "eight hundred twenty-three trillion, four hundred twenty billion, three hundred sixty million, two hundred twenty-three thousand, nine hundred eighty-three".