421103401 has 4 divisors (see below), whose sum is σ = 432484612. Its totient is φ = 409722192.

The previous prime is 421103399. The next prime is 421103443. The reversal of 421103401 is 104301124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 162537001 + 258566400 = 12749^2 + 16080^2 .

It is a cyclic number.

It is not a de Polignac number, because 421103401 - 2¹ = 421103399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421103471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5690550 + ... + 5690623.

It is an arithmetic number, because the mean of its divisors is an integer number (108121153).

Almost surely, 2^421103401 is an apocalyptic number.

It is an amenable number.

421103401 is a deficient number, since it is larger than the sum of its proper divisors (11381211).

421103401 is a wasteful number, since it uses less digits than its factorization.

421103401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11381210.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 421103401 is about 20520.8041021788. The cubic root of 421103401 is about 749.5424771020.

Adding to 421103401 its reverse (104301124), we get a palindrome (525404525).

The spelling of 421103401 in words is "four hundred twenty-one million, one hundred three thousand, four hundred one".