203113043430 has 64 divisors (see below), whose sum is σ = 534012134400. Its totient is φ = 49033483520.

The previous prime is 203113043417. The next prime is 203113043459. The reversal of 203113043430 is 34340311302.

It is a super-2 number, since 2×203113043430² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 203113043430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1208775 + ... + 1366514.

It is an arithmetic number, because the mean of its divisors is an integer number (8343939600).

Almost surely, 2^203113043430 is an apocalyptic number.

203113043430 is an abundant number, since it is smaller than the sum of its proper divisors (330899090970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203113043430 is a wasteful number, since it uses less digits than its factorization.

203113043430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2575549.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 203113043430 its reverse (34340311302), we get a palindrome (237453354732).

The spelling of 203113043430 in words is "two hundred three billion, one hundred thirteen million, forty-three thousand, four hundred thirty".