423052313422021 has 4 divisors (see below), whose sum is σ = 425199787094412. Its totient is φ = 420904839749632.

The previous prime is 423052313422019. The next prime is 423052313422069. The reversal of 423052313422021 is 120224313250324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 260741401005121 + 162310912416900 = 16147489^2 + 12740130^2 .

It is a cyclic number.

It is not a de Polignac number, because 423052313422021 - 2¹ = 423052313422019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423052313422721) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073736835900 + ... + 1073736836293.

It is an arithmetic number, because the mean of its divisors is an integer number (106299946773603).

Almost surely, 2^{423052313422021} is an apocalyptic number.

It is an amenable number.

423052313422021 is a deficient number, since it is larger than the sum of its proper divisors (2147473672391).

423052313422021 is a wasteful number, since it uses less digits than its factorization.

423052313422021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147473672390.

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 423052313422021 its reverse (120224313250324), we get a palindrome (543276626672345).

The spelling of 423052313422021 in words is "four hundred twenty-three trillion, fifty-two billion, three hundred thirteen million, four hundred twenty-two thousand, twenty-one".