1320331112044 has 96 divisors (see below), whose sum is σ = 2744803353600. Its totient is φ = 543731408640.

The previous prime is 1320331112039. The next prime is 1320331112047. The reversal of 1320331112044 is 4402111330231.

It is not an unprimeable number, because it can be changed into a prime (1320331112047) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275698402 + ... + 275703190.

It is an arithmetic number, because the mean of its divisors is an integer number (28591701600).

Almost surely, 2^{1320331112044} is an apocalyptic number.

1320331112044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1320331112044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372401676800).

1320331112044 is an abundant number, since it is smaller than the sum of its proper divisors (1424472241556).

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

1320331112044 is a wasteful number, since it uses less digits than its factorization.

1320331112044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6383 (or 6381 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1320331112044 its reverse (4402111330231), we get a palindrome (5722442442275).

The spelling of 1320331112044 in words is "one trillion, three hundred twenty billion, three hundred thirty-one million, one hundred twelve thousand, forty-four".