20301201202021 has 4 divisors (see below), whose sum is σ = 21183862123872. Its totient is φ = 19418540280172.

The previous prime is 20301201201997. The next prime is 20301201202043. The reversal of 20301201202021 is 12020210210302.

It is a happy number.

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 20301201202021 - 2⁷ = 20301201201893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301201201986 and 20301201202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301201202081) 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, 441330460891 + ... + 441330460936.

It is an arithmetic number, because the mean of its divisors is an integer number (5295965530968).

Almost surely, 2^{20301201202021} is an apocalyptic number.

It is an amenable number.

20301201202021 is a deficient number, since it is larger than the sum of its proper divisors (882660921851).

20301201202021 is an equidigital number, since it uses as much as digits as its factorization.

20301201202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 882660921850.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 20301201202021 its reverse (12020210210302), we get a palindrome (32321411412323).

The spelling of 20301201202021 in words is "twenty trillion, three hundred one billion, two hundred one million, two hundred two thousand, twenty-one".