421124603 has 2 divisors, whose sum is σ = 421124604. Its totient is φ = 421124602.

The previous prime is 421124579. The next prime is 421124609. The reversal of 421124603 is 306421124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421124603 - 2¹⁰ = 421123579 is a prime.

It is not a weakly prime, because it can be changed into another prime (421124609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210562301 + 210562302.

It is an arithmetic number, because the mean of its divisors is an integer number (210562302).

Almost surely, 2^421124603 is an apocalyptic number.

421124603 is a deficient number, since it is larger than the sum of its proper divisors (1).

421124603 is an equidigital number, since it uses as much as digits as its factorization.

421124603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 421124603 is about 20521.3206933667. The cubic root of 421124603 is about 749.5550563821. Note that the first 3 decimals are identical.

Adding to 421124603 its reverse (306421124), we get a palindrome (727545727).

The spelling of 421124603 in words is "four hundred twenty-one million, one hundred twenty-four thousand, six hundred three".