2321002001 has 4 divisors (see below), whose sum is σ = 2321943012. Its totient is φ = 2320060992.

The previous prime is 2321001997. The next prime is 2321002043. The reversal of 2321002001 is 1002001232.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1491504400 + 829497601 = 38620^2 + 28801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321002001 - 2² = 2321001997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2321002051) 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, 466796 + ... + 471741.

It is an arithmetic number, because the mean of its divisors is an integer number (580485753).

Almost surely, 2^2321002001 is an apocalyptic number.

It is an amenable number.

2321002001 is a deficient number, since it is larger than the sum of its proper divisors (941011).

2321002001 is an equidigital number, since it uses as much as digits as its factorization.

2321002001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941010.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2321002001 is about 48176.7786490546. The cubic root of 2321002001 is about 1324.0117469667.

Adding to 2321002001 its reverse (1002001232), we get a palindrome (3323003233).

It can be divided in two parts, 232 and 1002001, that multiplied together give a palindrome (232464232).

The spelling of 2321002001 in words is "two billion, three hundred twenty-one million, two thousand, one".