20302013109 has 32 divisors (see below), whose sum is σ = 32064144640. Its totient is φ = 11184003072.

The previous prime is 20302013101. The next prime is 20302013113. The reversal of 20302013109 is 90131020302.

It is a happy number.

It is not a de Polignac number, because 20302013109 - 2³ = 20302013101 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302013101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35164 + ... + 204549.

It is an arithmetic number, because the mean of its divisors is an integer number (1002004520).

Almost surely, 2^20302013109 is an apocalyptic number.

It is an amenable number.

20302013109 is a deficient number, since it is larger than the sum of its proper divisors (11762131531).

20302013109 is a wasteful number, since it uses less digits than its factorization.

20302013109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239869.

The product of its (nonzero) digits is 324, while the sum is 21.

The spelling of 20302013109 in words is "twenty billion, three hundred two million, thirteen thousand, one hundred nine".