423340020321 has 8 divisors (see below), whose sum is σ = 564705695424. Its totient is φ = 282100512720.

The previous prime is 423340020283. The next prime is 423340020437. The reversal of 423340020321 is 123020043324.

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

It is not a de Polignac number, because 423340020321 - 2¹³ = 423340012129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423340020291 and 423340020300.

It is not an unprimeable number, because it can be changed into a prime (423340024321) 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, 31534045 + ... + 31547466.

It is an arithmetic number, because the mean of its divisors is an integer number (70588211928).

Almost surely, 2^423340020321 is an apocalyptic number.

It is an amenable number.

423340020321 is a deficient number, since it is larger than the sum of its proper divisors (141365675103).

423340020321 is a wasteful number, since it uses less digits than its factorization.

423340020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63083751.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 423340020321 its reverse (123020043324), we get a palindrome (546360063645).

The spelling of 423340020321 in words is "four hundred twenty-three billion, three hundred forty million, twenty thousand, three hundred twenty-one".