1231303322 has 64 divisors (see below), whose sum is σ = 2068070400. Its totient is φ = 547560000.

The previous prime is 1231303309. The next prime is 1231303343. The reversal of 1231303322 is 2233031321.

It is a super-2 number, since 2×1231303322² = 3032215741536471368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231303294 and 1231303303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9399197 + ... + 9399327.

It is an arithmetic number, because the mean of its divisors is an integer number (32313600).

Almost surely, 2^1231303322 is an apocalyptic number.

1231303322 is a deficient number, since it is larger than the sum of its proper divisors (836767078).

1231303322 is a wasteful number, since it uses less digits than its factorization.

1231303322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1231303322 is about 35089.9319178593. The cubic root of 1231303322 is about 1071.8195732255.

Adding to 1231303322 its reverse (2233031321), we get a palindrome (3464334643).

The spelling of 1231303322 in words is "one billion, two hundred thirty-one million, three hundred three thousand, three hundred twenty-two".