421002311 has 8 divisors (see below), whose sum is σ = 427445424. Its totient is φ = 414592000.

The previous prime is 421002259. The next prime is 421002313. The reversal of 421002311 is 113200124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 421002311 - 2²⁶ = 353893447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421002313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18311 + ... + 34311.

It is an arithmetic number, because the mean of its divisors is an integer number (53430678).

Almost surely, 2^421002311 is an apocalyptic number.

421002311 is a deficient number, since it is larger than the sum of its proper divisors (6443113).

421002311 is a wasteful number, since it uses less digits than its factorization.

421002311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16401.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 421002311 is about 20518.3408442301. The cubic root of 421002311 is about 749.4824939618.

Adding to 421002311 its reverse (113200124), we get a palindrome (534202435).

The spelling of 421002311 in words is "four hundred twenty-one million, two thousand, three hundred eleven".