423421340002 has 4 divisors (see below), whose sum is σ = 635132010006. Its totient is φ = 211710670000.

The previous prime is 423421339981. The next prime is 423421340047. The reversal of 423421340002 is 200043124324.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 253974673681 + 169446666321 = 503959^2 + 411639^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105855334999 + ... + 105855335002.

Almost surely, 2^423421340002 is an apocalyptic number.

423421340002 is a deficient number, since it is larger than the sum of its proper divisors (211710670004).

423421340002 is a wasteful number, since it uses less digits than its factorization.

423421340002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211710670003.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 423421340002 its reverse (200043124324), we get a palindrome (623464464326).

The spelling of 423421340002 in words is "four hundred twenty-three billion, four hundred twenty-one million, three hundred forty thousand, two".