20300000203 has 16 divisors (see below), whose sum is σ = 25411769280. Its totient is φ = 15811762176.

The previous prime is 20300000173. The next prime is 20300000219. The reversal of 20300000203 is 30200000302.

It is not a de Polignac number, because 20300000203 - 2⁹ = 20299999691 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20300000203.

It is not an unprimeable number, because it can be changed into a prime (20300000233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2937726 + ... + 2944627.

It is an arithmetic number, because the mean of its divisors is an integer number (1588235580).

Almost surely, 2^20300000203 is an apocalyptic number.

20300000203 is a deficient number, since it is larger than the sum of its proper divisors (5111769077).

20300000203 is a wasteful number, since it uses less digits than its factorization.

20300000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5882406.

The product of its (nonzero) digits is 36, while the sum is 10.

Adding to 20300000203 its reverse (30200000302), we get a palindrome (50500000505).

Subtracting 20300000203 from its reverse (30200000302), we obtain a palindrome (9900000099).

The spelling of 20300000203 in words is "twenty billion, three hundred million, two hundred three", and thus it is an aban number.