1320131220000 has 120 divisors (see below), whose sum is σ = 4330294624656. Its totient is φ = 352034976000.

The previous prime is 1320131219989. The next prime is 1320131220049. The reversal of 1320131220000 is 221310231.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10941094 + ... + 11061093.

Almost surely, 2^{1320131220000} is an apocalyptic number.

1320131220000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1320131220000 is an abundant number, since it is smaller than the sum of its proper divisors (3010163404656).

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

1320131220000 is an equidigital number, since it uses as much as digits as its factorization.

1320131220000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22002220 (or 22002197 counting only the distinct ones).

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

Adding to 1320131220000 its reverse (221310231), we get a palindrome (1320352530231).

The spelling of 1320131220000 in words is "one trillion, three hundred twenty billion, one hundred thirty-one million, two hundred twenty thousand".