1320313232320 has 56 divisors (see below), whose sum is σ = 3146197111200. Its totient is φ = 527755533312.

The previous prime is 1320313232311. The next prime is 1320313232333. The reversal of 1320313232320 is 232323130231.

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, 986380 + ... + 1900939.

Almost surely, 2^{1320313232320} is an apocalyptic number.

1320313232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320313232320 is an abundant number, since it is smaller than the sum of its proper divisors (1825883878880).

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

1320313232320 is a wasteful number, since it uses less digits than its factorization.

1320313232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2888765 (or 2888755 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1320313232320 its reverse (232323130231), we get a palindrome (1552636362551).

The spelling of 1320313232320 in words is "one trillion, three hundred twenty billion, three hundred thirteen million, two hundred thirty-two thousand, three hundred twenty".