20301323131221 has 16 divisors (see below), whose sum is σ = 29538376546368. Its totient is φ = 12300007507200.

The previous prime is 20301323131189. The next prime is 20301323131237. The reversal of 20301323131221 is 12213132310302.

It is not a de Polignac number, because 20301323131221 - 2⁵ = 20301323131189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20301323131191 and 20301323131200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301323139221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95509570 + ... + 95721891.

It is an arithmetic number, because the mean of its divisors is an integer number (1846148534148).

Almost surely, 2^{20301323131221} is an apocalyptic number.

It is an amenable number.

20301323131221 is a deficient number, since it is larger than the sum of its proper divisors (9237053415147).

20301323131221 is a wasteful number, since it uses less digits than its factorization.

20301323131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191234692.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20301323131221 its reverse (12213132310302), we get a palindrome (32514455441523).

The spelling of 20301323131221 in words is "twenty trillion, three hundred one billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred twenty-one".