1331112232320 has 128 divisors (see below), whose sum is σ = 4569298806240. Its totient is φ = 327658389504.

The previous prime is 1331112232273. The next prime is 1331112232327. The reversal of 1331112232320 is 232322111331.

It is a tau number, because it is divible by the number of its divisors (128).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331112232327) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 26639949 + ... + 26689868.

Almost surely, 2^{1331112232320} is an apocalyptic number.

1331112232320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331112232320 is an abundant number, since it is smaller than the sum of its proper divisors (3238186573920).

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

1331112232320 is a wasteful number, since it uses less digits than its factorization.

1331112232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53329852 (or 53329840 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1331112232320 its reverse (232322111331), we get a palindrome (1563434343651).

The spelling of 1331112232320 in words is "one trillion, three hundred thirty-one billion, one hundred twelve million, two hundred thirty-two thousand, three hundred twenty".