20103323 has 4 divisors (see below), whose sum is σ = 20208768. Its totient is φ = 19997880.

The previous prime is 20103319. The next prime is 20103329. The reversal of 20103323 is 32330102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20103323 - 2² = 20103319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20103298 and 20103307.

It is not an unprimeable number, because it can be changed into a prime (20103329) 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 3 ways as a sum of consecutive naturals, for example, 52436 + ... + 52817.

It is an arithmetic number, because the mean of its divisors is an integer number (5052192).

Almost surely, 2^20103323 is an apocalyptic number.

20103323 is a deficient number, since it is larger than the sum of its proper divisors (105445).

20103323 is a wasteful number, since it uses less digits than its factorization.

20103323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105444.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 20103323 is about 4483.6729363324. The cubic root of 20103323 is about 271.9083952988.

Adding to 20103323 its reverse (32330102), we get a palindrome (52433425).

The spelling of 20103323 in words is "twenty million, one hundred three thousand, three hundred twenty-three".