20302113 has 8 divisors (see below), whose sum is σ = 29151808. Its totient is φ = 12493584.

The previous prime is 20302099. The next prime is 20302133. The reversal of 20302113 is 31120302.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20302113 - 2⁸ = 20301857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20302133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260245 + ... + 260322.

It is an arithmetic number, because the mean of its divisors is an integer number (3643976).

Almost surely, 2^20302113 is an apocalyptic number.

It is an amenable number.

20302113 is a deficient number, since it is larger than the sum of its proper divisors (8849695).

20302113 is a wasteful number, since it uses less digits than its factorization.

20302113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520583.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20302113 is about 4505.7866127903. The cubic root of 20302113 is about 272.8017049469.

Adding to 20302113 its reverse (31120302), we get a palindrome (51422415).

The spelling of 20302113 in words is "twenty million, three hundred two thousand, one hundred thirteen".