421331448203 has 2 divisors, whose sum is σ = 421331448204. Its totient is φ = 421331448202.

The previous prime is 421331448193. The next prime is 421331448211. The reversal of 421331448203 is 302844133124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421331448203 - 2²⁰ = 421330399627 is a prime.

It is not a weakly prime, because it can be changed into another prime (421331448403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210665724101 + 210665724102.

It is an arithmetic number, because the mean of its divisors is an integer number (210665724102).

Almost surely, 2^421331448203 is an apocalyptic number.

421331448203 is a deficient number, since it is larger than the sum of its proper divisors (1).

421331448203 is an equidigital number, since it uses as much as digits as its factorization.

421331448203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 35.

The spelling of 421331448203 in words is "four hundred twenty-one billion, three hundred thirty-one million, four hundred forty-eight thousand, two hundred three".