20300121021 has 8 divisors (see below), whose sum is σ = 27069628320. Its totient is φ = 13532013872.

The previous prime is 20300121019. The next prime is 20300121053. The reversal of 20300121021 is 12012100302.

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 20300121021 - 2¹ = 20300121019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20300120988 and 20300121006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300121221) 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, 315726 + ... + 374543.

It is an arithmetic number, because the mean of its divisors is an integer number (3383703540).

Almost surely, 2^20300121021 is an apocalyptic number.

It is an amenable number.

20300121021 is a deficient number, since it is larger than the sum of its proper divisors (6769507299).

20300121021 is an equidigital number, since it uses as much as digits as its factorization.

20300121021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700075.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20300121021 its reverse (12012100302), we get a palindrome (32312221323).

The spelling of 20300121021 in words is "twenty billion, three hundred million, one hundred twenty-one thousand, twenty-one".