421103363 has 2 divisors, whose sum is σ = 421103364. Its totient is φ = 421103362.

The previous prime is 421103317. The next prime is 421103381. The reversal of 421103363 is 363301124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 421103363 - 2¹² = 421099267 is a prime.

It is equal to p_22400087 and since 421103363 and 22400087 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (421103383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210551681 + 210551682.

It is an arithmetic number, because the mean of its divisors is an integer number (210551682).

Almost surely, 2^421103363 is an apocalyptic number.

421103363 is a deficient number, since it is larger than the sum of its proper divisors (1).

421103363 is an equidigital number, since it uses as much as digits as its factorization.

421103363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 421103363 is about 20520.8031762892. The cubic root of 421103363 is about 749.5424545559.

Adding to 421103363 its reverse (363301124), we get a palindrome (784404487).

The spelling of 421103363 in words is "four hundred twenty-one million, one hundred three thousand, three hundred sixty-three".