423403010321 has 4 divisors (see below), whose sum is σ = 423404625444. Its totient is φ = 423401395200.

The previous prime is 423403010309. The next prime is 423403010339. The reversal of 423403010321 is 123010304324.

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 10935930625 + 412467079696 = 104575^2 + 642236^2 .

It is a cyclic number.

It is not a de Polignac number, because 423403010321 - 2¹⁰ = 423403009297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423403060321) 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, 313640 + ... + 972201.

It is an arithmetic number, because the mean of its divisors is an integer number (105851156361).

Almost surely, 2^423403010321 is an apocalyptic number.

It is an amenable number.

423403010321 is a deficient number, since it is larger than the sum of its proper divisors (1615123).

423403010321 is a wasteful number, since it uses less digits than its factorization.

423403010321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615122.

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

Adding to 423403010321 its reverse (123010304324), we get a palindrome (546413314645).

The spelling of 423403010321 in words is "four hundred twenty-three billion, four hundred three million, ten thousand, three hundred twenty-one".