203023130205 has 32 divisors (see below), whose sum is σ = 373126811904. Its totient is φ = 92339444736.

The previous prime is 203023130203. The next prime is 203023130227. The reversal of 203023130205 is 502031320302.

It is not a de Polignac number, because 203023130205 - 2¹ = 203023130203 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203023130203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4886812 + ... + 4928181.

It is an arithmetic number, because the mean of its divisors is an integer number (11660212872).

Almost surely, 2^203023130205 is an apocalyptic number.

It is an amenable number.

203023130205 is a deficient number, since it is larger than the sum of its proper divisors (170103681699).

203023130205 is a wasteful number, since it uses less digits than its factorization.

203023130205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815205.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 203023130205 its reverse (502031320302), we get a palindrome (705054450507).

The spelling of 203023130205 in words is "two hundred three billion, twenty-three million, one hundred thirty thousand, two hundred five".