10020302109 has 6 divisors (see below), whose sum is σ = 14473769726. Its totient is φ = 6680201400.

The previous prime is 10020302087. The next prime is 10020302113. The reversal of 10020302109 is 90120302001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6771644100 + 3248658009 = 82290^2 + 56997^2 .

It is not a de Polignac number, because 10020302109 - 2⁹ = 10020301597 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10020302091 and 10020302100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10020302119) 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, 556683442 + ... + 556683459.

Almost surely, 2^10020302109 is an apocalyptic number.

It is an amenable number.

10020302109 is a deficient number, since it is larger than the sum of its proper divisors (4453467617).

10020302109 is a wasteful number, since it uses less digits than its factorization.

10020302109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1113366907 (or 1113366904 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Subtracting from 10020302109 its product of nonzero digits (108), we obtain a palindrome (10020302001).

The spelling of 10020302109 in words is "ten billion, twenty million, three hundred two thousand, one hundred nine".