2321213201 has 16 divisors (see below), whose sum is σ = 2491057296. Its totient is φ = 2155216896.

The previous prime is 2321213197. The next prime is 2321213207. The reversal of 2321213201 is 1023121232.

It can be written as a sum of positive squares in 8 ways, for example, as 148254976 + 2172958225 = 12176^2 + 46615^2 .

It is a cyclic number.

It is not a de Polignac number, because 2321213201 - 2² = 2321213197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2321213201.

It is not an unprimeable number, because it can be changed into a prime (2321213207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 553625 + ... + 557801.

It is an arithmetic number, because the mean of its divisors is an integer number (155691081).

Almost surely, 2^2321213201 is an apocalyptic number.

It is an amenable number.

2321213201 is a deficient number, since it is larger than the sum of its proper divisors (169844095).

2321213201 is a wasteful number, since it uses less digits than its factorization.

2321213201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4628.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2321213201 is about 48178.9705265690. The cubic root of 2321213201 is about 1324.0519053120.

Adding to 2321213201 its reverse (1023121232), we get a palindrome (3344334433).

The spelling of 2321213201 in words is "two billion, three hundred twenty-one million, two hundred thirteen thousand, two hundred one".