10231012021 has 2 divisors, whose sum is σ = 10231012022. Its totient is φ = 10231012020.

The previous prime is 10231012019. The next prime is 10231012073. The reversal of 10231012021 is 12021013201.

10231012021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8633011396 + 1598000625 = 92914^2 + 39975^2 .

It is an emirp because it is prime and its reverse (12021013201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10231012021 - 2¹ = 10231012019 is a prime.

Together with 10231012019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 10231011992 and 10231012010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10231012081) 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 as a sum of consecutive naturals, namely, 5115506010 + 5115506011.

It is an arithmetic number, because the mean of its divisors is an integer number (5115506011).

Almost surely, 2^10231012021 is an apocalyptic number.

It is an amenable number.

10231012021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10231012021 is an equidigital number, since it uses as much as digits as its factorization.

10231012021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 10231012021 its reverse (12021013201), we get a palindrome (22252025222).

The spelling of 10231012021 in words is "ten billion, two hundred thirty-one million, twelve thousand, twenty-one".