43143331903 has 4 divisors (see below), whose sum is σ = 49306665040. Its totient is φ = 36979998768.

The previous prime is 43143331877. The next prime is 43143331919. The reversal of 43143331903 is 30913334134.

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 43143331903 - 2²¹ = 43141234751 is a prime.

It is a super-2 number, since 2×43143331903² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43143331303) 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, 3081666558 + ... + 3081666571.

It is an arithmetic number, because the mean of its divisors is an integer number (12326666260).

Almost surely, 2^43143331903 is an apocalyptic number.

43143331903 is a deficient number, since it is larger than the sum of its proper divisors (6163333137).

43143331903 is an equidigital number, since it uses as much as digits as its factorization.

43143331903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6163333136.

The product of its (nonzero) digits is 34992, while the sum is 34.

The spelling of 43143331903 in words is "forty-three billion, one hundred forty-three million, three hundred thirty-one thousand, nine hundred three".