423221231003 has 4 divisors (see below), whose sum is σ = 424231305960. Its totient is φ = 422211156048.

The previous prime is 423221230973. The next prime is 423221231029. The reversal of 423221231003 is 300132122324.

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

It is a cyclic number.

It is not a de Polignac number, because 423221231003 - 2²² = 423217036699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423221231003.

It is not an unprimeable number, because it can be changed into a prime (423221231033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 505036850 + ... + 505037687.

It is an arithmetic number, because the mean of its divisors is an integer number (106057826490).

Almost surely, 2^423221231003 is an apocalyptic number.

423221231003 is a deficient number, since it is larger than the sum of its proper divisors (1010074957).

423221231003 is a wasteful number, since it uses less digits than its factorization.

423221231003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010074956.

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

Adding to 423221231003 its reverse (300132122324), we get a palindrome (723353353327).

The spelling of 423221231003 in words is "four hundred twenty-three billion, two hundred twenty-one million, two hundred thirty-one thousand, three".