301231230021 has 8 divisors (see below), whose sum is σ = 446268488960. Its totient is φ = 200820819996.

The previous prime is 301231230019. The next prime is 301231230067. The reversal of 301231230021 is 120032132103.

301231230021 is a `hidden beast` number, since 30 + 1 + 2 + 312 + 300 + 21 = 666.

It is not a de Polignac number, because 301231230021 - 2¹ = 301231230019 is a prime.

It is a super-2 number, since 2×301231230021² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 301231229976 and 301231230003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301231230721) 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 7 ways as a sum of consecutive naturals, for example, 5578356085 + ... + 5578356138.

It is an arithmetic number, because the mean of its divisors is an integer number (55783561120).

Almost surely, 2^301231230021 is an apocalyptic number.

It is an amenable number.

301231230021 is a deficient number, since it is larger than the sum of its proper divisors (145037258939).

301231230021 is a wasteful number, since it uses less digits than its factorization.

301231230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11156712232 (or 11156712226 counting only the distinct ones).

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

Adding to 301231230021 its reverse (120032132103), we get a palindrome (421263362124).

The spelling of 301231230021 in words is "three hundred one billion, two hundred thirty-one million, two hundred thirty thousand, twenty-one".