243002543103 has 32 divisors (see below), whose sum is σ = 387774074880. Its totient is φ = 149959481760.

The previous prime is 243002543081. The next prime is 243002543111. The reversal of 243002543103 is 301345200342.

243002543103 is a `hidden beast` number, since 2 + 4 + 300 + 254 + 3 + 103 = 666.

It is not a de Polignac number, because 243002543103 - 2⁵ = 243002543071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243002542103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6292176 + ... + 6330677.

It is an arithmetic number, because the mean of its divisors is an integer number (12117939840).

Almost surely, 2^243002543103 is an apocalyptic number.

243002543103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

243002543103 is a deficient number, since it is larger than the sum of its proper divisors (144771531777).

243002543103 is a wasteful number, since it uses less digits than its factorization.

243002543103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12622916 (or 12622910 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 243002543103 its reverse (301345200342), we get a palindrome (544347743445).

The spelling of 243002543103 in words is "two hundred forty-three billion, two million, five hundred forty-three thousand, one hundred three".