1231304322 has 16 divisors (see below), whose sum is σ = 2607468192. Its totient is φ = 386291520.

The previous prime is 1231304317. The next prime is 1231304353. The reversal of 1231304322 is 2234031321.

It is a super-2 number, since 2×1231304322² = 3032220666751759368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6035704 + ... + 6035907.

It is an arithmetic number, because the mean of its divisors is an integer number (162966762).

Almost surely, 2^1231304322 is an apocalyptic number.

1231304322 is an abundant number, since it is smaller than the sum of its proper divisors (1376163870).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231304322 is a wasteful number, since it uses less digits than its factorization.

1231304322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12071633.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1231304322 is about 35089.9461669579. The cubic root of 1231304322 is about 1071.8198633840.

Adding to 1231304322 its reverse (2234031321), we get a palindrome (3465335643).

The spelling of 1231304322 in words is "one billion, two hundred thirty-one million, three hundred four thousand, three hundred twenty-two".