10021031021 has 16 divisors (see below), whose sum is σ = 10867488768. Its totient is φ = 9204998400.

The previous prime is 10021030993. The next prime is 10021031039. The reversal of 10021031021 is 12013012001.

10021031021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10021031021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10021030993 and 10021031011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10021031051) 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 in 15 ways as a sum of consecutive naturals, for example, 142976 + ... + 201206.

It is an arithmetic number, because the mean of its divisors is an integer number (679218048).

Almost surely, 2^10021031021 is an apocalyptic number.

It is an amenable number.

10021031021 is a deficient number, since it is larger than the sum of its proper divisors (846457747).

10021031021 is a wasteful number, since it uses less digits than its factorization.

10021031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58492.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 10021031021 its reverse (12013012001), we get a palindrome (22034043022).

The spelling of 10021031021 in words is "ten billion, twenty-one million, thirty-one thousand, twenty-one".