423331219873 has 2 divisors, whose sum is σ = 423331219874. Its totient is φ = 423331219872.

The previous prime is 423331219847. The next prime is 423331219897. The reversal of 423331219873 is 378912133324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 396411270544 + 26919949329 = 629612^2 + 164073^2 .

It is a cyclic number.

It is not a de Polignac number, because 423331219873 - 2⁵ = 423331219841 is a prime.

It is a super-2 number, since 2×423331219873² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (423331210873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211665609936 + 211665609937.

It is an arithmetic number, because the mean of its divisors is an integer number (211665609937).

Almost surely, 2^423331219873 is an apocalyptic number.

It is an amenable number.

423331219873 is a deficient number, since it is larger than the sum of its proper divisors (1).

423331219873 is an equidigital number, since it uses as much as digits as its factorization.

423331219873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

It can be divided in two parts, 423331 and 219873, that added together give a square (643204 = 802²).

The spelling of 423331219873 in words is "four hundred twenty-three billion, three hundred thirty-one million, two hundred nineteen thousand, eight hundred seventy-three".