421311322 has 4 divisors (see below), whose sum is σ = 631966986. Its totient is φ = 210655660.

The previous prime is 421311313. The next prime is 421311329. The reversal of 421311322 is 223113124.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 421029361 + 281961 = 20519^2 + 531^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 421311322.

It is not an unprimeable number, because it can be changed into a prime (421311329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105327829 + ... + 105327832.

Almost surely, 2^421311322 is an apocalyptic number.

421311322 is a deficient number, since it is larger than the sum of its proper divisors (210655664).

421311322 is a wasteful number, since it uses less digits than its factorization.

421311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210655663.

The product of its digits is 288, while the sum is 19.

The square root of 421311322 is about 20525.8695796305. The cubic root of 421311322 is about 749.6658197128.

Adding to 421311322 its reverse (223113124), we get a palindrome (644424446).

The spelling of 421311322 in words is "four hundred twenty-one million, three hundred eleven thousand, three hundred twenty-two".