10230021 has 6 divisors (see below), whose sum is σ = 14776710. Its totient is φ = 6820008.

The previous prime is 10229981. The next prime is 10230023. The reversal of 10230021 is 12003201.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7128900 + 3101121 = 2670^2 + 1761^2 .

It is not a de Polignac number, because 10230021 - 2¹⁹ = 9705733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1136669 = 10230021 / (1 + 0 + 2 + 3 + 0 + 0 + 2 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 10229985 and 10230012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10230023) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 568326 + ... + 568343.

It is an arithmetic number, because the mean of its divisors is an integer number (2462785).

Almost surely, 2^10230021 is an apocalyptic number.

It is an amenable number.

10230021 is a deficient number, since it is larger than the sum of its proper divisors (4546689).

10230021 is a wasteful number, since it uses less digits than its factorization.

10230021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136675 (or 1136672 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 10230021 is about 3198.4404011956. The cubic root of 10230021 is about 217.0828468873.

Adding to 10230021 its reverse (12003201), we get a palindrome (22233222).

The spelling of 10230021 in words is "ten million, two hundred thirty thousand, twenty-one".