1331101312 has 32 divisors (see below), whose sum is σ = 2737353600. Its totient is φ = 644079360.

The previous prime is 1331101267. The next prime is 1331101327. The reversal of 1331101312 is 2131011331.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163762 + ... + 171697.

It is an arithmetic number, because the mean of its divisors is an integer number (85542300).

Almost surely, 2^1331101312 is an apocalyptic number.

It is an amenable number.

1331101312 is an abundant number, since it is smaller than the sum of its proper divisors (1406252288).

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

1331101312 is an equidigital number, since it uses as much as digits as its factorization.

1331101312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335504 (or 335492 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1331101312 is about 36484.2611546404. The cubic root of 1331101312 is about 1100.0279089338.

Adding to 1331101312 its reverse (2131011331), we get a palindrome (3462112643).

The spelling of 1331101312 in words is "one billion, three hundred thirty-one million, one hundred one thousand, three hundred twelve".