1322011311320 has 48 divisors (see below), whose sum is σ = 3460162263840. Its totient is φ = 453261020352.

The previous prime is 1322011311311. The next prime is 1322011311331. The reversal of 1322011311320 is 231131102231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1322011311292 and 1322011311301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 337245824 + ... + 337249743.

It is an arithmetic number, because the mean of its divisors is an integer number (72086713830).

Almost surely, 2^{1322011311320} is an apocalyptic number.

1322011311320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322011311320 is an abundant number, since it is smaller than the sum of its proper divisors (2138150952520).

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

1322011311320 is a wasteful number, since it uses less digits than its factorization.

1322011311320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674495592 (or 674495581 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1322011311320 its reverse (231131102231), we get a palindrome (1553142413551).

The spelling of 1322011311320 in words is "one trillion, three hundred twenty-two billion, eleven million, three hundred eleven thousand, three hundred twenty".