2001131332 has 12 divisors (see below), whose sum is σ = 3502752876. Its totient is φ = 1000344800.

The previous prime is 2001131323. The next prime is 2001131339. The reversal of 2001131332 is 2331311002.

It can be written as a sum of positive squares in 2 ways, for example, as 354719556 + 1646411776 = 18834^2 + 40576^2 .

It is not an unprimeable number, because it can be changed into a prime (2001131339) by changing a digit.

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, 33919 + ... + 71782.

It is an arithmetic number, because the mean of its divisors is an integer number (291896073).

Almost surely, 2^2001131332 is an apocalyptic number.

It is an amenable number.

2001131332 is a deficient number, since it is larger than the sum of its proper divisors (1501621544).

2001131332 is a wasteful number, since it uses less digits than its factorization.

2001131332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110438 (or 110436 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 2001131332 is about 44734.0064380556. The cubic root of 2001131332 is about 1260.1585699484.

Adding to 2001131332 its reverse (2331311002), we get a palindrome (4332442334).

The spelling of 2001131332 in words is "two billion, one million, one hundred thirty-one thousand, three hundred thirty-two".