421101403 has 4 divisors (see below), whose sum is σ = 432482560. Its totient is φ = 409720248.

The previous prime is 421101397. The next prime is 421101409. The reversal of 421101403 is 304101124.

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

It is an interprime number because it is at equal distance from previous prime (421101397) and next prime (421101409).

It is a cyclic number.

It is not a de Polignac number, because 421101403 - 2⁵ = 421101371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421101409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5690523 + ... + 5690596.

It is an arithmetic number, because the mean of its divisors is an integer number (108120640).

Almost surely, 2^421101403 is an apocalyptic number.

421101403 is a deficient number, since it is larger than the sum of its proper divisors (11381157).

421101403 is a wasteful number, since it uses less digits than its factorization.

421101403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11381156.

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

The square root of 421101403 is about 20520.7554198182. The cubic root of 421101403 is about 749.5412916542.

Adding to 421101403 its reverse (304101124), we get a palindrome (725202527).

The spelling of 421101403 in words is "four hundred twenty-one million, one hundred one thousand, four hundred three".