201020214321 has 20 divisors (see below), whose sum is σ = 300600110272. Its totient is φ = 133874837208.

The previous prime is 201020214257. The next prime is 201020214323. The reversal of 201020214321 is 123412020102.

It is a happy number.

201020214321 is a `hidden beast` number, since 20 + 10 + 202 + 1 + 432 + 1 = 666.

It is not a de Polignac number, because 201020214321 - 2⁶ = 201020214257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201020214294 and 201020214303.

It is not an unprimeable number, because it can be changed into a prime (201020214323) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1204885 + ... + 1361538.

Almost surely, 2^201020214321 is an apocalyptic number.

It is an amenable number.

201020214321 is a deficient number, since it is larger than the sum of its proper divisors (99579895951).

201020214321 is an equidigital number, since it uses as much as digits as its factorization.

201020214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2567402 (or 2567393 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 201020214321 its reverse (123412020102), we get a palindrome (324432234423).

The spelling of 201020214321 in words is "two hundred one billion, twenty million, two hundred fourteen thousand, three hundred twenty-one".