421100311 has 4 divisors (see below), whose sum is σ = 434684224. Its totient is φ = 407516400.

The previous prime is 421100291. The next prime is 421100327. The reversal of 421100311 is 113001124.

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

It is a cyclic number.

It is not a de Polignac number, because 421100311 - 2⁵ = 421100279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421100291 and 421100300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421100371) 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, 6791910 + ... + 6791971.

It is an arithmetic number, because the mean of its divisors is an integer number (108671056).

Almost surely, 2^421100311 is an apocalyptic number.

421100311 is a deficient number, since it is larger than the sum of its proper divisors (13583913).

421100311 is a wasteful number, since it uses less digits than its factorization.

421100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13583912.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 421100311 is about 20520.7288125934. The cubic root of 421100311 is about 749.5406437503.

Adding to 421100311 its reverse (113001124), we get a palindrome (534101435).

The spelling of 421100311 in words is "four hundred twenty-one million, one hundred thousand, three hundred eleven".