203113431030223 has 4 divisors (see below), whose sum is σ = 232129635463120. Its totient is φ = 174097226597328.

The previous prime is 203113431030161. The next prime is 203113431030233. The reversal of 203113431030223 is 322030134311302.

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 203113431030223 - 2²¹ = 203113428933071 is a prime.

It is a super-2 number, since 2×203113431030223² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203113431030191 and 203113431030200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203113431030233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14508102216438 + ... + 14508102216451.

It is an arithmetic number, because the mean of its divisors is an integer number (58032408865780).

Almost surely, 2^{203113431030223} is an apocalyptic number.

203113431030223 is a deficient number, since it is larger than the sum of its proper divisors (29016204432897).

203113431030223 is an equidigital number, since it uses as much as digits as its factorization.

203113431030223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29016204432896.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 203113431030223 its reverse (322030134311302), we get a palindrome (525143565341525).

The spelling of 203113431030223 in words is "two hundred three trillion, one hundred thirteen billion, four hundred thirty-one million, thirty thousand, two hundred twenty-three".