10002300021 has 24 divisors (see below), whose sum is σ = 16958000384. Its totient is φ = 5561123040.

The previous prime is 10002300019. The next prime is 10002300041. The reversal of 10002300021 is 12000320001.

It is a happy number.

It is not a de Polignac number, because 10002300021 - 2¹ = 10002300019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10002299976 and 10002300012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10002300041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2143165 + ... + 2147826.

Almost surely, 2^10002300021 is an apocalyptic number.

It is an amenable number.

10002300021 is a deficient number, since it is larger than the sum of its proper divisors (6955700363).

10002300021 is a wasteful number, since it uses less digits than its factorization.

10002300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4291041 (or 4291038 counting only the distinct ones).

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

Adding to 10002300021 its reverse (12000320001), we get a palindrome (22002620022).

The spelling of 10002300021 in words is "ten billion, two million, three hundred thousand, twenty-one".