20340203 has 8 divisors (see below), whose sum is σ = 23058000. Its totient is φ = 17787168.

The previous prime is 20340197. The next prime is 20340233. The reversal of 20340203 is 30204302.

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 20340203 - 2⁸ = 20339947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20340233) 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, 40928 + ... + 41421.

It is an arithmetic number, because the mean of its divisors is an integer number (2882250).

Almost surely, 2^20340203 is an apocalyptic number.

20340203 is a deficient number, since it is larger than the sum of its proper divisors (2717797).

20340203 is a wasteful number, since it uses less digits than its factorization.

20340203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82381.

The product of its (nonzero) digits is 144, while the sum is 14.

The square root of 20340203 is about 4510.0114190543. The cubic root of 20340203 is about 272.9722048567.

Adding to 20340203 its reverse (30204302), we get a palindrome (50544505).

The spelling of 20340203 in words is "twenty million, three hundred forty thousand, two hundred three".