43430101243 has 4 divisors (see below), whose sum is σ = 43979849440. Its totient is φ = 42880353048.

The previous prime is 43430101193. The next prime is 43430101261. The reversal of 43430101243 is 34210103434.

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 43430101243 - 2⁹ = 43430100731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43430101643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274873980 + ... + 274874137.

It is an arithmetic number, because the mean of its divisors is an integer number (10994962360).

Almost surely, 2^43430101243 is an apocalyptic number.

43430101243 is a deficient number, since it is larger than the sum of its proper divisors (549748197).

43430101243 is an equidigital number, since it uses as much as digits as its factorization.

43430101243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549748196.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 43430101243 its reverse (34210103434), we get a palindrome (77640204677).

The spelling of 43430101243 in words is "forty-three billion, four hundred thirty million, one hundred one thousand, two hundred forty-three".