423403221013 has 8 divisors (see below), whose sum is σ = 426078659160. Its totient is φ = 420733098240.

The previous prime is 423403221011. The next prime is 423403221019. The reversal of 423403221013 is 310122304324.

It can be written as a sum of positive squares in 4 ways, for example, as 352008449809 + 71394771204 = 593303^2 + 267198^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423403221013 - 2¹ = 423403221011 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 (423403221011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168968 + ... + 1487713.

It is an arithmetic number, because the mean of its divisors is an integer number (53259832395).

Almost surely, 2^423403221013 is an apocalyptic number.

It is an amenable number.

423403221013 is a deficient number, since it is larger than the sum of its proper divisors (2675438147).

423403221013 is a wasteful number, since it uses less digits than its factorization.

423403221013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2657687.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 423403221013 its reverse (310122304324), we get a palindrome (733525525337).

The spelling of 423403221013 in words is "four hundred twenty-three billion, four hundred three million, two hundred twenty-one thousand, thirteen".