20301313221 has 48 divisors (see below), whose sum is σ = 34427877120. Its totient is φ = 11285763840.

The previous prime is 20301313189. The next prime is 20301313223. The reversal of 20301313221 is 12231310302.

It is not a de Polignac number, because 20301313221 - 2⁵ = 20301313189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20301313194 and 20301313203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301313223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 916351 + ... + 938243.

It is an arithmetic number, because the mean of its divisors is an integer number (717247440).

Almost surely, 2^20301313221 is an apocalyptic number.

20301313221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20301313221 is a deficient number, since it is larger than the sum of its proper divisors (14126563899).

20301313221 is a wasteful number, since it uses less digits than its factorization.

20301313221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22306 (or 22303 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20301313221 its reverse (12231310302), we get a palindrome (32532623523).

The spelling of 20301313221 in words is "twenty billion, three hundred one million, three hundred thirteen thousand, two hundred twenty-one".