2001323032012 has 24 divisors (see below), whose sum is σ = 3808559097504. Its totient is φ = 916345043712.

The previous prime is 2001323032001. The next prime is 2001323032019. The reversal of 2001323032012 is 2102303231002.

It is not an unprimeable number, because it can be changed into a prime (2001323032019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397716688 + ... + 397721719.

It is an arithmetic number, because the mean of its divisors is an integer number (158689962396).

Almost surely, 2^{2001323032012} is an apocalyptic number.

It is an amenable number.

2001323032012 is a deficient number, since it is larger than the sum of its proper divisors (1807236065492).

2001323032012 is a wasteful number, since it uses less digits than its factorization.

2001323032012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795438465 (or 795438463 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 2001323032012 its reverse (2102303231002), we get a palindrome (4103626263014).

The spelling of 2001323032012 in words is "two trillion, one billion, three hundred twenty-three million, thirty-two thousand, twelve".