43128804503 has 2 divisors, whose sum is σ = 43128804504. Its totient is φ = 43128804502.

The previous prime is 43128804461. The next prime is 43128804629. The reversal of 43128804503 is 30540882134.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43128804503 - 2⁸ = 43128804247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43128801503) 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 as a sum of consecutive naturals, namely, 21564402251 + 21564402252.

It is an arithmetic number, because the mean of its divisors is an integer number (21564402252).

Almost surely, 2^43128804503 is an apocalyptic number.

43128804503 is a deficient number, since it is larger than the sum of its proper divisors (1).

43128804503 is an equidigital number, since it uses as much as digits as its factorization.

43128804503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 43128804503 in words is "forty-three billion, one hundred twenty-eight million, eight hundred four thousand, five hundred three".