43042040803 has 2 divisors, whose sum is σ = 43042040804. Its totient is φ = 43042040802.

The previous prime is 43042040791. The next prime is 43042040827. The reversal of 43042040803 is 30804024034.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 43042040803 - 2¹³ = 43042032611 is a prime.

It is not a weakly prime, because it can be changed into another prime (43042044803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21521020401 + 21521020402.

It is an arithmetic number, because the mean of its divisors is an integer number (21521020402).

Almost surely, 2^43042040803 is an apocalyptic number.

43042040803 is a deficient number, since it is larger than the sum of its proper divisors (1).

43042040803 is an equidigital number, since it uses as much as digits as its factorization.

43042040803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 43042040803 its reverse (30804024034), we get a palindrome (73846064837).

The spelling of 43042040803 in words is "forty-three billion, forty-two million, forty thousand, eight hundred three".