20010013 has 8 divisors (see below), whose sum is σ = 20443136. Its totient is φ = 19580400.

The previous prime is 20009999. The next prime is 20010017. The reversal of 20010013 is 31001002.

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 20010013 - 2⁵ = 20009981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20009978 and 20010005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010017) 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, 12868 + ... + 14338.

It is an arithmetic number, because the mean of its divisors is an integer number (2555392).

Almost surely, 2^20010013 is an apocalyptic number.

It is an amenable number.

20010013 is a deficient number, since it is larger than the sum of its proper divisors (433123).

20010013 is a wasteful number, since it uses less digits than its factorization.

20010013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1755.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 20010013 is about 4473.2553023497. The cubic root of 20010013 is about 271.4870532079.

Adding to 20010013 its reverse (31001002), we get a palindrome (51011015).

The spelling of 20010013 in words is "twenty million, ten thousand, thirteen".