423300043021001 has 2 divisors, whose sum is σ = 423300043021002. Its totient is φ = 423300043021000.

The previous prime is 423300043020997. The next prime is 423300043021073. The reversal of 423300043021001 is 100120340003324.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 412636291529401 + 10663751491600 = 20313451^2 + 3265540^2 .

It is a cyclic number.

It is not a de Polignac number, because 423300043021001 - 2² = 423300043020997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (423300043021081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211650021510500 + 211650021510501.

It is an arithmetic number, because the mean of its divisors is an integer number (211650021510501).

Almost surely, 2^{423300043021001} is an apocalyptic number.

It is an amenable number.

423300043021001 is a deficient number, since it is larger than the sum of its proper divisors (1).

423300043021001 is an equidigital number, since it uses as much as digits as its factorization.

423300043021001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 423300043021001 its reverse (100120340003324), we get a palindrome (523420383024325).

The spelling of 423300043021001 in words is "four hundred twenty-three trillion, three hundred billion, forty-three million, twenty-one thousand, one".