2001331311132 has 48 divisors (see below), whose sum is σ = 4796365814912. Its totient is φ = 649028635200.

The previous prime is 2001331311121. The next prime is 2001331311139. The reversal of 2001331311132 is 2311131331002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001331311099 and 2001331311108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001331311139) 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, 5600007 + ... + 5946657.

Almost surely, 2^{2001331311132} is an apocalyptic number.

It is an amenable number.

2001331311132 is an abundant number, since it is smaller than the sum of its proper divisors (2795034503780).

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

2001331311132 is a wasteful number, since it uses less digits than its factorization.

2001331311132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359698 (or 359696 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2001331311132 its reverse (2311131331002), we get a palindrome (4312462642134).

It can be divided in two parts, 2001 and 331311132, that added together give a palindrome (331313133).

The spelling of 2001331311132 in words is "two trillion, one billion, three hundred thirty-one million, three hundred eleven thousand, one hundred thirty-two".