1320311322 has 48 divisors (see below), whose sum is σ = 3173657760. Its totient is φ = 393309600.

The previous prime is 1320311287. The next prime is 1320311383. The reversal of 1320311322 is 2231130231.

1320311322 is a `hidden beast` number, since 1 + 32 + 0 + 311 + 322 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1320311295 and 1320311304.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44829 + ... + 68192.

It is an arithmetic number, because the mean of its divisors is an integer number (66117870).

Almost surely, 2^1320311322 is an apocalyptic number.

1320311322 is an abundant number, since it is smaller than the sum of its proper divisors (1853346438).

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

1320311322 is a wasteful number, since it uses less digits than its factorization.

1320311322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113099 (or 113096 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1320311322 is about 36336.0884245952. The cubic root of 1320311322 is about 1097.0475431492.

Adding to 1320311322 its reverse (2231130231), we get a palindrome (3551441553).

The spelling of 1320311322 in words is "one billion, three hundred twenty million, three hundred eleven thousand, three hundred twenty-two".