201121030321 has 8 divisors (see below), whose sum is σ = 201893076000. Its totient is φ = 200350376160.

The previous prime is 201121030307. The next prime is 201121030339. The reversal of 201121030321 is 123030121102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201121030321 - 2¹⁷ = 201120899249 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201121030295 and 201121030304.

It is not an unprimeable number, because it can be changed into a prime (201121030361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57796 + ... + 636853.

It is an arithmetic number, because the mean of its divisors is an integer number (25236634500).

Almost surely, 2^201121030321 is an apocalyptic number.

It is an amenable number.

201121030321 is a deficient number, since it is larger than the sum of its proper divisors (772045679).

201121030321 is an equidigital number, since it uses as much as digits as its factorization.

201121030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695759.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 201121030321 its reverse (123030121102), we get a palindrome (324151151423).

The spelling of 201121030321 in words is "two hundred one billion, one hundred twenty-one million, thirty thousand, three hundred twenty-one".