231421322 has 16 divisors (see below), whose sum is σ = 379209600. Its totient is φ = 105047040.

The previous prime is 231421321. The next prime is 231421361. The reversal of 231421322 is 223124132.

It is a junction number, because it is equal to n+sod(n) for n = 231421294 and 231421303.

It is not an unprimeable number, because it can be changed into a prime (231421321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10079 + ... + 23757.

It is an arithmetic number, because the mean of its divisors is an integer number (23700600).

Almost surely, 2^231421322 is an apocalyptic number.

231421322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

231421322 is a deficient number, since it is larger than the sum of its proper divisors (147788278).

231421322 is a wasteful number, since it uses less digits than its factorization.

231421322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14461.

The product of its digits is 576, while the sum is 20.

The square root of 231421322 is about 15212.5383154817. The cubic root of 231421322 is about 613.9520541029.

Adding to 231421322 its reverse (223124132), we get a palindrome (454545454).

The spelling of 231421322 in words is "two hundred thirty-one million, four hundred twenty-one thousand, three hundred twenty-two".