243103432043 has 6 divisors (see below), whose sum is σ = 251775374604. Its totient is φ = 234720554264.

The previous prime is 243103432021. The next prime is 243103432057. The reversal of 243103432043 is 340234301342.

It is not a de Polignac number, because 243103432043 - 2³⁶ = 174383955307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243103431997 and 243103432015.

It is not an unprimeable number, because it can be changed into a prime (243103432343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 144531521 + ... + 144533202.

It is an arithmetic number, because the mean of its divisors is an integer number (41962562434).

Almost surely, 2^243103432043 is an apocalyptic number.

243103432043 is a deficient number, since it is larger than the sum of its proper divisors (8671942561).

243103432043 is an equidigital number, since it uses as much as digits as its factorization.

243103432043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289064781 (or 289064752 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 243103432043 its reverse (340234301342), we get a palindrome (583337733385).

The spelling of 243103432043 in words is "two hundred forty-three billion, one hundred three million, four hundred thirty-two thousand, forty-three".