1321310022 has 16 divisors (see below), whose sum is σ = 2643170880. Its totient is φ = 440344872.

The previous prime is 1321310009. The next prime is 1321310033. The reversal of 1321310022 is 2200131231.

It is a junction number, because it is equal to n+sod(n) for n = 1321309983 and 1321310010.

It is a congruent number.

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, 12429 + ... + 52887.

It is an arithmetic number, because the mean of its divisors is an integer number (165198180).

Almost surely, 2^1321310022 is an apocalyptic number.

1321310022 is an abundant number, since it is smaller than the sum of its proper divisors (1321860858).

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

1321310022 is a wasteful number, since it uses less digits than its factorization.

1321310022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45907.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1321310022 is about 36349.8283627310. The cubic root of 1321310022 is about 1097.3240802639.

Adding to 1321310022 its reverse (2200131231), we get a palindrome (3521441253).

The spelling of 1321310022 in words is "one billion, three hundred twenty-one million, three hundred ten thousand, twenty-two".