10101310021 has 12 divisors (see below), whose sum is σ = 11204970700. Its totient is φ = 9098749440.

The previous prime is 10101310003. The next prime is 10101310027. The reversal of 10101310021 is 12001310101.

10101310021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 6579480996 + 3521829025 = 81114^2 + 59345^2 .

It is not a de Polignac number, because 10101310021 - 2²⁷ = 9967092293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101310027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 369756 + ... + 396133.

Almost surely, 2^10101310021 is an apocalyptic number.

10101310021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10101310021 is a deficient number, since it is larger than the sum of its proper divisors (1103660679).

10101310021 is a wasteful number, since it uses less digits than its factorization.

10101310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766020 (or 766009 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 10101310021 its reverse (12001310101), we get a palindrome (22102620122).

The spelling of 10101310021 in words is "ten billion, one hundred one million, three hundred ten thousand, twenty-one".