203545130430 has 16 divisors (see below), whose sum is σ = 488508313104. Its totient is φ = 54278701440.

The previous prime is 203545130363. The next prime is 203545130431. The reversal of 203545130430 is 34031545302.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 6784837681 = 203545130430 / (2 + 0 + 3 + 5 + 4 + 5 + 1 + 3 + 0 + 4 + 3 + 0).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203545130431) 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, 3392418811 + ... + 3392418870.

It is an arithmetic number, because the mean of its divisors is an integer number (30531769569).

Almost surely, 2^203545130430 is an apocalyptic number.

203545130430 is an abundant number, since it is smaller than the sum of its proper divisors (284963182674).

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

203545130430 is a wasteful number, since it uses less digits than its factorization.

203545130430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6784837691.

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 203545130430 its reverse (34031545302), we get a palindrome (237576675732).

The spelling of 203545130430 in words is "two hundred three billion, five hundred forty-five million, one hundred thirty thousand, four hundred thirty".