1331206021332 has 96 divisors (see below), whose sum is σ = 3894855753600. Its totient is φ = 389485555200.

The previous prime is 1331206021319. The next prime is 1331206021373. The reversal of 1331206021332 is 2331206021331.

1331206021332 is a `hidden beast` number, since 1 + 3 + 3 + 1 + 20 + 602 + 1 + 3 + 32 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1331206021296 and 1331206021305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19285269 + ... + 19354172.

It is an arithmetic number, because the mean of its divisors is an integer number (40571414100).

Almost surely, 2^{1331206021332} is an apocalyptic number.

1331206021332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331206021332 is an abundant number, since it is smaller than the sum of its proper divisors (2563649732268).

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

1331206021332 is a wasteful number, since it uses less digits than its factorization.

1331206021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38639494 (or 38639486 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Subtracting 1331206021332 from its reverse (2331206021331), we obtain a palindrome (999999999999).

The spelling of 1331206021332 in words is "one trillion, three hundred thirty-one billion, two hundred six million, twenty-one thousand, three hundred thirty-two".