10023321021 has 16 divisors (see below), whose sum is σ = 15367340544. Its totient is φ = 5692471344.

The previous prime is 10023321019. The next prime is 10023321029. The reversal of 10023321021 is 12012332001.

It is not a de Polignac number, because 10023321021 - 2¹ = 10023321019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10023321029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1460691 + ... + 1467536.

It is an arithmetic number, because the mean of its divisors is an integer number (960458784).

Almost surely, 2^10023321021 is an apocalyptic number.

It is an amenable number.

10023321021 is a deficient number, since it is larger than the sum of its proper divisors (5344019523).

10023321021 is a wasteful number, since it uses less digits than its factorization.

10023321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2928400.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 10023321021 its reverse (12012332001), we get a palindrome (22035653022).

The spelling of 10023321021 in words is "ten billion, twenty-three million, three hundred twenty-one thousand, twenty-one".