201230302021 has 4 divisors (see below), whose sum is σ = 229977488032. Its totient is φ = 172483116012.

The previous prime is 201230302019. The next prime is 201230302037. The reversal of 201230302021 is 120203032102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201230302021 - 2¹ = 201230302019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201230301986 and 201230302004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201230302001) 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, 14373592995 + ... + 14373593008.

It is an arithmetic number, because the mean of its divisors is an integer number (57494372008).

Almost surely, 2^201230302021 is an apocalyptic number.

It is an amenable number.

201230302021 is a deficient number, since it is larger than the sum of its proper divisors (28747186011).

201230302021 is an equidigital number, since it uses as much as digits as its factorization.

201230302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28747186010.

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

Adding to 201230302021 its reverse (120203032102), we get a palindrome (321433334123).

The spelling of 201230302021 in words is "two hundred one billion, two hundred thirty million, three hundred two thousand, twenty-one".