2001342321 has 24 divisors (see below), whose sum is σ = 3238869504. Its totient is φ = 1180150560.

The previous prime is 2001342319. The next prime is 2001342337. The reversal of 2001342321 is 1232431002.

2001342321 is a `hidden beast` number, since 2 + 0 + 0 + 1 + 342 + 321 = 666.

It is not a de Polignac number, because 2001342321 - 2¹ = 2001342319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2001342294 and 2001342303.

It is not an unprimeable number, because it can be changed into a prime (2001342311) 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 23 ways as a sum of consecutive naturals, for example, 269521 + ... + 276846.

It is an arithmetic number, because the mean of its divisors is an integer number (134952896).

Almost surely, 2^2001342321 is an apocalyptic number.

It is an amenable number.

2001342321 is a deficient number, since it is larger than the sum of its proper divisors (1237527183).

2001342321 is a wasteful number, since it uses less digits than its factorization.

2001342321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546421 (or 546418 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2001342321 is about 44736.3646377307. The cubic root of 2001342321 is about 1260.2028566057.

Adding to 2001342321 its reverse (1232431002), we get a palindrome (3233773323).

The spelling of 2001342321 in words is "two billion, one million, three hundred forty-two thousand, three hundred twenty-one".