421311 has 16 divisors (see below), whose sum is σ = 649728. Its totient is φ = 240000.

The previous prime is 421303. The next prime is 421313. The reversal of 421311 is 113124.

It is a happy number.

It is not a de Polignac number, because 421311 - 2³ = 421303 is a prime.

421311 is a lucky number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186 + ... + 936.

It is an arithmetic number, because the mean of its divisors is an integer number (40608).

2⁴²¹³¹¹ is an apocalyptic number.

421311 is a deficient number, since it is larger than the sum of its proper divisors (228417).

421311 is a wasteful number, since it uses less digits than its factorization.

421311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 782.

The product of its digits is 24, while the sum is 12.

The square root of 421311 is about 649.0847402304. The cubic root of 421311 is about 74.9665628728.

Adding to 421311 its reverse (113124), we get a palindrome (534435).

It can be divided in two parts, 4213 and 11, that added together give a palindrome (4224).

The spelling of 421311 in words is "four hundred twenty-one thousand, three hundred eleven", and thus it is an iban number.