43113431203 has 4 divisors (see below), whose sum is σ = 43121858560. Its totient is φ = 43105003848.

The previous prime is 43113431177. The next prime is 43113431233. The reversal of 43113431203 is 30213431134.

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 43113431203 - 2²¹ = 43111334051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43113431233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4206000 + ... + 4216237.

It is an arithmetic number, because the mean of its divisors is an integer number (10780464640).

Almost surely, 2^43113431203 is an apocalyptic number.

43113431203 is a deficient number, since it is larger than the sum of its proper divisors (8427357).

43113431203 is an equidigital number, since it uses as much as digits as its factorization.

43113431203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8427356.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 43113431203 its reverse (30213431134), we get a palindrome (73326862337).

The spelling of 43113431203 in words is "forty-three billion, one hundred thirteen million, four hundred thirty-one thousand, two hundred three".