20302013 has 8 divisors (see below), whose sum is σ = 21568800. Its totient is φ = 19055088.

The previous prime is 20301997. The next prime is 20302019. The reversal of 20302013 is 31020302.

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

It is a cyclic number.

It is not a de Polignac number, because 20302013 - 2⁴ = 20301997 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20301985 and 20302003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2831 + ... + 6972.

It is an arithmetic number, because the mean of its divisors is an integer number (2696100).

Almost surely, 2^20302013 is an apocalyptic number.

It is an amenable number.

20302013 is a deficient number, since it is larger than the sum of its proper divisors (1266787).

20302013 is a wasteful number, since it uses less digits than its factorization.

20302013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9931.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20302013 is about 4505.7755159351. The cubic root of 20302013 is about 272.8012570425.

Adding to 20302013 its reverse (31020302), we get a palindrome (51322315).

The spelling of 20302013 in words is "twenty million, three hundred two thousand, thirteen".