20301301021 has 4 divisors (see below), whose sum is σ = 20301767200. Its totient is φ = 20300834844.

The previous prime is 20301300989. The next prime is 20301301039. The reversal of 20301301021 is 12010310302.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12010310302 = 2 ⋅6005155151.

It is a cyclic number.

It is not a de Polignac number, because 20301301021 - 2⁵ = 20301300989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20301300992 and 20301301010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301308021) 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, 160161 + ... + 257398.

It is an arithmetic number, because the mean of its divisors is an integer number (5075441800).

Almost surely, 2^20301301021 is an apocalyptic number.

It is an amenable number.

20301301021 is a deficient number, since it is larger than the sum of its proper divisors (466179).

20301301021 is an equidigital number, since it uses as much as digits as its factorization.

20301301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466178.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 20301301021 its reverse (12010310302), we get a palindrome (32311611323).

The spelling of 20301301021 in words is "twenty billion, three hundred one million, three hundred one thousand, twenty-one".