1331321123112 has 64 divisors (see below), whose sum is σ = 3427182766080. Its totient is φ = 430652351232.

The previous prime is 1331321123053. The next prime is 1331321123123. The reversal of 1331321123112 is 2113211231331.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1617123 + ... + 2297330.

It is an arithmetic number, because the mean of its divisors is an integer number (53549730720).

Almost surely, 2^{1331321123112} is an apocalyptic number.

1331321123112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331321123112 is an abundant number, since it is smaller than the sum of its proper divisors (2095861642968).

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

1331321123112 is a wasteful number, since it uses less digits than its factorization.

1331321123112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914882 (or 3914878 counting only the distinct ones).

The product of its digits is 648, while the sum is 24.

Adding to 1331321123112 its reverse (2113211231331), we get a palindrome (3444532354443).

The spelling of 1331321123112 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, one hundred twelve".