421421311 has 8 divisors (see below), whose sum is σ = 446083200. Its totient is φ = 397007640.

The previous prime is 421421309. The next prime is 421421333. The reversal of 421421311 is 113124124.

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 421421311 - 2¹ = 421421309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421422311) 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, 58555 + ... + 65356.

It is an arithmetic number, because the mean of its divisors is an integer number (55760400).

Almost surely, 2^421421311 is an apocalyptic number.

421421311 is a deficient number, since it is larger than the sum of its proper divisors (24661889).

421421311 is a wasteful number, since it uses less digits than its factorization.

421421311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124109.

The product of its digits is 192, while the sum is 19.

The square root of 421421311 is about 20528.5486822620. The cubic root of 421421311 is about 749.7310508259.

Adding to 421421311 its reverse (113124124), we get a palindrome (534545435).

The spelling of 421421311 in words is "four hundred twenty-one million, four hundred twenty-one thousand, three hundred eleven".