43042403311 has 4 divisors (see below), whose sum is σ = 43047370224. Its totient is φ = 43037436400.

The previous prime is 43042403291. The next prime is 43042403347. The reversal of 43042403311 is 11330424034.

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 43042403311 - 2¹⁵ = 43042370543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43042433311) 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, 2470435 + ... + 2487796.

It is an arithmetic number, because the mean of its divisors is an integer number (10761842556).

Almost surely, 2^43042403311 is an apocalyptic number.

43042403311 is a deficient number, since it is larger than the sum of its proper divisors (4966913).

43042403311 is an equidigital number, since it uses as much as digits as its factorization.

43042403311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966912.

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

Adding to 43042403311 its reverse (11330424034), we get a palindrome (54372827345).

The spelling of 43042403311 in words is "forty-three billion, forty-two million, four hundred three thousand, three hundred eleven".