43542405111 has 4 divisors (see below), whose sum is σ = 58056540152. Its totient is φ = 29028270072.

The previous prime is 43542405061. The next prime is 43542405169. The reversal of 43542405111 is 11150424534.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 43542405111 - 2¹¹ = 43542403063 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 (43542405211) 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, 7257067516 + ... + 7257067521.

It is an arithmetic number, because the mean of its divisors is an integer number (14514135038).

Almost surely, 2^43542405111 is an apocalyptic number.

43542405111 is a deficient number, since it is larger than the sum of its proper divisors (14514135041).

43542405111 is a wasteful number, since it uses less digits than its factorization.

43542405111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14514135040.

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 43542405111 its reverse (11150424534), we get a palindrome (54692829645).

The spelling of 43542405111 in words is "forty-three billion, five hundred forty-two million, four hundred five thousand, one hundred eleven".