301021100230021 has 2 divisors, whose sum is σ = 301021100230022. Its totient is φ = 301021100230020.

The previous prime is 301021100230007. The next prime is 301021100230049. The reversal of 301021100230021 is 120032001120103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 266439055807521 + 34582044422500 = 16322961^2 + 5880650^2 .

It is a cyclic number.

It is not a de Polignac number, because 301021100230021 - 2⁷ = 301021100229893 is a prime.

It is a super-2 number, since 2×301021100230021² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 301021100229977 and 301021100230004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (301021100230621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150510550115010 + 150510550115011.

It is an arithmetic number, because the mean of its divisors is an integer number (150510550115011).

Almost surely, 2^{301021100230021} is an apocalyptic number.

It is an amenable number.

301021100230021 is a deficient number, since it is larger than the sum of its proper divisors (1).

301021100230021 is an equidigital number, since it uses as much as digits as its factorization.

301021100230021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 301021100230021 its reverse (120032001120103), we get a palindrome (421053101350124).

The spelling of 301021100230021 in words is "three hundred one trillion, twenty-one billion, one hundred million, two hundred thirty thousand, twenty-one".