421203304122003 has 64 divisors (see below), whose sum is σ = 675688937616000. Its totient is φ = 257784577947648.

The previous prime is 421203304121993. The next prime is 421203304122077. The reversal of 421203304122003 is 300221403302124.

421203304122003 is a `hidden beast` number, since 4 + 2 + 12 + 0 + 3 + 30 + 412 + 200 + 3 = 666.

It is not a de Polignac number, because 421203304122003 - 2¹³ = 421203304113811 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (421203304122203) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 49804375 + ... + 57644447.

It is an arithmetic number, because the mean of its divisors is an integer number (10557639650250).

Almost surely, 2^{421203304122003} is an apocalyptic number.

421203304122003 is a deficient number, since it is larger than the sum of its proper divisors (254485633493997).

421203304122003 is a wasteful number, since it uses less digits than its factorization.

421203304122003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7840933 (or 7840927 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 421203304122003 its reverse (300221403302124), we get a palindrome (721424707424127).

The spelling of 421203304122003 in words is "four hundred twenty-one trillion, two hundred three billion, three hundred four million, one hundred twenty-two thousand, three".