2043321001 has 16 divisors (see below), whose sum is σ = 2189099520. Its totient is φ = 1900460800.

The previous prime is 2043320969. The next prime is 2043321013. The reversal of 2043321001 is 1001233402.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2043321001 - 2⁵ = 2043320969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2043321061) 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 15 ways as a sum of consecutive naturals, for example, 1419240 + ... + 1420678.

It is an arithmetic number, because the mean of its divisors is an integer number (136818720).

Almost surely, 2^2043321001 is an apocalyptic number.

It is an amenable number.

2043321001 is a deficient number, since it is larger than the sum of its proper divisors (145778519).

2043321001 is a wasteful number, since it uses less digits than its factorization.

2043321001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2043321001 is about 45203.1083112655. The cubic root of 2043321001 is about 1268.9529885093.

Adding to 2043321001 its reverse (1001233402), we get a palindrome (3044554403).

The spelling of 2043321001 in words is "two billion, forty-three million, three hundred twenty-one thousand, one".