10312021 has 2 divisors, whose sum is σ = 10312022. Its totient is φ = 10312020.

The previous prime is 10312007. The next prime is 10312039. The reversal of 10312021 is 12021301.

10312021 is digitally balanced in base 3, 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., 10304100 + 7921 = 3210^2 + 89^2 .

It is a cyclic number.

It is not a de Polignac number, because 10312021 - 2⁷ = 10311893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10311989 and 10312007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10312091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5156010 + 5156011.

It is an arithmetic number, because the mean of its divisors is an integer number (5156011).

Almost surely, 2^10312021 is an apocalyptic number.

It is an amenable number.

10312021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10312021 is an equidigital number, since it uses as much as digits as its factorization.

10312021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 10312021 is about 3211.2335636014. The cubic root of 10312021 is about 217.6613221621.

Adding to 10312021 its reverse (12021301), we get a palindrome (22333322).

The spelling of 10312021 in words is "ten million, three hundred twelve thousand, twenty-one".