20103713 has 4 divisors (see below), whose sum is σ = 22975680. Its totient is φ = 17231748.

The previous prime is 20103701. The next prime is 20103737. The reversal of 20103713 is 31730102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20103713 - 2⁴ = 20103697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20103691 and 20103700.

It is not an unprimeable number, because it can be changed into a prime (20103763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435973 + ... + 1435986.

It is an arithmetic number, because the mean of its divisors is an integer number (5743920).

Almost surely, 2^20103713 is an apocalyptic number.

It is an amenable number.

20103713 is a deficient number, since it is larger than the sum of its proper divisors (2871967).

20103713 is an equidigital number, since it uses as much as digits as its factorization.

20103713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871966.

The product of its (nonzero) digits is 126, while the sum is 17.

The square root of 20103713 is about 4483.7164272509. The cubic root of 20103713 is about 271.9101536083.

Adding to 20103713 its reverse (31730102), we get a palindrome (51833815).

The spelling of 20103713 in words is "twenty million, one hundred three thousand, seven hundred thirteen".