2001312332 has 24 divisors (see below), whose sum is σ = 3749121600. Its totient is φ = 931920336.

The previous prime is 2001312281. The next prime is 2001312343. The reversal of 2001312332 is 2332131002.

It is a self number, because there is not a number n which added to its sum of digits gives 2001312332.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218678 + ... + 227645.

It is an arithmetic number, because the mean of its divisors is an integer number (156213400).

Almost surely, 2^2001312332 is an apocalyptic number.

It is an amenable number.

2001312332 is a deficient number, since it is larger than the sum of its proper divisors (1747809268).

2001312332 is a wasteful number, since it uses less digits than its factorization.

2001312332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446405 (or 446403 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 2001312332 is about 44736.0294617213. The cubic root of 2001312332 is about 1260.1965620950.

Adding to 2001312332 its reverse (2332131002), we get a palindrome (4333443334).

The spelling of 2001312332 in words is "two billion, one million, three hundred twelve thousand, three hundred thirty-two".