1331320331112 has 16 divisors (see below), whose sum is σ = 3328300827840. Its totient is φ = 443773443696.

The previous prime is 1331320331093. The next prime is 1331320331219. The reversal of 1331320331112 is 2111330231331.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 55471680463 = 1331320331112 / (1 + 3 + 3 + 1 + 3 + 2 + 0 + 3 + 3 + 1 + 1 + 1 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27735840208 + ... + 27735840255.

It is an arithmetic number, because the mean of its divisors is an integer number (208018801740).

Almost surely, 2^{1331320331112} is an apocalyptic number.

1331320331112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331320331112 is an abundant number, since it is smaller than the sum of its proper divisors (1996980496728).

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

1331320331112 is a wasteful number, since it uses less digits than its factorization.

1331320331112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55471680472 (or 55471680468 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 1331320331112 its reverse (2111330231331), we get a palindrome (3442650562443).

The spelling of 1331320331112 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, three hundred thirty-one thousand, one hundred twelve".