1231324322 has 4 divisors (see below), whose sum is σ = 1846986486. Its totient is φ = 615662160.

The previous prime is 1231324319. The next prime is 1231324327. The reversal of 1231324322 is 2234231321.

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., 1049047321 + 182277001 = 32389^2 + 13501^2 .

It is not an unprimeable number, because it can be changed into a prime (1231324327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307831079 + ... + 307831082.

Almost surely, 2^1231324322 is an apocalyptic number.

1231324322 is a deficient number, since it is larger than the sum of its proper divisors (615662164).

1231324322 is an equidigital number, since it uses as much as digits as its factorization.

1231324322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615662163.

The product of its digits is 1728, while the sum is 23.

The square root of 1231324322 is about 35090.2311477140. The cubic root of 1231324322 is about 1071.8256665205.

Adding to 1231324322 its reverse (2234231321), we get a palindrome (3465555643).

The spelling of 1231324322 in words is "one billion, two hundred thirty-one million, three hundred twenty-four thousand, three hundred twenty-two".