1331322012120 has 32 divisors (see below), whose sum is σ = 3993966036720. Its totient is φ = 355019203200.

The previous prime is 1331322012113. The next prime is 1331322012143. The reversal of 1331322012120 is 212102231331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5547174931 + ... + 5547175170.

Almost surely, 2^{1331322012120} is an apocalyptic number.

1331322012120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331322012120 is an abundant number, since it is smaller than the sum of its proper divisors (2662644024600).

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

1331322012120 is a wasteful number, since it uses less digits than its factorization.

1331322012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11094350115 (or 11094350111 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1331322012120 its reverse (212102231331), we get a palindrome (1543424243451).

The spelling of 1331322012120 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-two million, twelve thousand, one hundred twenty".