43101100243 has 4 divisors (see below), whose sum is σ = 43101629928. Its totient is φ = 43100570560.

The previous prime is 43101100219. The next prime is 43101100277. The reversal of 43101100243 is 34200110134.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 34200110134 = 2 ⋅17100055067.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43101100243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43101100243.

It is not an unprimeable number, because it can be changed into a prime (43101100283) 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, 114238 + ... + 315043.

It is an arithmetic number, because the mean of its divisors is an integer number (10775407482).

Almost surely, 2^43101100243 is an apocalyptic number.

43101100243 is a deficient number, since it is larger than the sum of its proper divisors (529685).

43101100243 is a wasteful number, since it uses less digits than its factorization.

43101100243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529684.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 43101100243 its reverse (34200110134), we get a palindrome (77301210377).

The spelling of 43101100243 in words is "forty-three billion, one hundred one million, one hundred thousand, two hundred forty-three".