2001323223232 has 28 divisors (see below), whose sum is σ = 4144044285936. Its totient is φ = 957154584320.

The previous prime is 2001323223217. The next prime is 2001323223233. The reversal of 2001323223232 is 2323223231002.

It is a junction number, because it is equal to n+sod(n) for n = 2001323223197 and 2001323223206.

It is not an unprimeable number, because it can be changed into a prime (2001323223233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 679795819 + ... + 679798762.

Almost surely, 2^{2001323223232} is an apocalyptic number.

It is an amenable number.

2001323223232 is an abundant number, since it is smaller than the sum of its proper divisors (2142721062704).

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

2001323223232 is a wasteful number, since it uses less digits than its factorization.

2001323223232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359594616 (or 1359594606 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 2001323223232 its reverse (2323223231002), we get a palindrome (4324546454234).

The spelling of 2001323223232 in words is "two trillion, one billion, three hundred twenty-three million, two hundred twenty-three thousand, two hundred thirty-two".