1321032303320 has 32 divisors (see below), whose sum is σ = 2995726809600. Its totient is φ = 524252187648.

The previous prime is 1321032303313. The next prime is 1321032303377. The reversal of 1321032303320 is 233032301231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130017785 + ... + 130027944.

It is an arithmetic number, because the mean of its divisors is an integer number (93616462800).

Almost surely, 2^{1321032303320} is an apocalyptic number.

1321032303320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321032303320 is an abundant number, since it is smaller than the sum of its proper divisors (1674694506280).

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

1321032303320 is a wasteful number, since it uses less digits than its factorization.

1321032303320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260045867 (or 260045863 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 1321032303320 its reverse (233032301231), we get a palindrome (1554064604551).

The spelling of 1321032303320 in words is "one trillion, three hundred twenty-one billion, thirty-two million, three hundred three thousand, three hundred twenty".