1321112301320 has 32 divisors (see below), whose sum is σ = 3397145918400. Its totient is φ = 452952788928.

The previous prime is 1321112301269. The next prime is 1321112301337. The reversal of 1321112301320 is 231032111231.

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 = 1321112301292 and 1321112301301.

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, 2359128830 + ... + 2359129389.

It is an arithmetic number, because the mean of its divisors is an integer number (106160809950).

Almost surely, 2^{1321112301320} is an apocalyptic number.

1321112301320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321112301320 is an abundant number, since it is smaller than the sum of its proper divisors (2076033617080).

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

1321112301320 is a wasteful number, since it uses less digits than its factorization.

1321112301320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4718258237 (or 4718258233 counting only the distinct ones).

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

Adding to 1321112301320 its reverse (231032111231), we get a palindrome (1552144412551).

The spelling of 1321112301320 in words is "one trillion, three hundred twenty-one billion, one hundred twelve million, three hundred one thousand, three hundred twenty".