20343203 has 8 divisors (see below), whose sum is σ = 21591360. Its totient is φ = 19100800.

The previous prime is 20343199. The next prime is 20343209. The reversal of 20343203 is 30234302.

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 20343203 - 2² = 20343199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (20343209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7478 + ... + 9828.

It is an arithmetic number, because the mean of its divisors is an integer number (2698920).

Almost surely, 2^20343203 is an apocalyptic number.

20343203 is a deficient number, since it is larger than the sum of its proper divisors (1248157).

20343203 is a wasteful number, since it uses less digits than its factorization.

20343203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877.

The product of its (nonzero) digits is 432, while the sum is 17.

The square root of 20343203 is about 4510.3440001845. The cubic root of 20343203 is about 272.9856245254.

Adding to 20343203 its reverse (30234302), we get a palindrome (50577505).

The spelling of 20343203 in words is "twenty million, three hundred forty-three thousand, two hundred three".