43111112445 has 24 divisors (see below), whose sum is σ = 74995718616. Its totient is φ = 22909580928.

The previous prime is 43111112389. The next prime is 43111112467. The reversal of 43111112445 is 54421111134.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8181745209 + 34929367236 = 90453^2 + 186894^2 .

It is not a de Polignac number, because 43111112445 - 2⁸ = 43111112189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1716822 + ... + 1741751.

It is an arithmetic number, because the mean of its divisors is an integer number (3124821609).

Almost surely, 2^43111112445 is an apocalyptic number.

43111112445 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

43111112445 is a deficient number, since it is larger than the sum of its proper divisors (31884606171).

43111112445 is a wasteful number, since it uses less digits than its factorization.

43111112445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3458861 (or 3458858 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

Adding to 43111112445 its reverse (54421111134), we get a palindrome (97532223579).

It can be divided in two parts, 431111 and 12445, that added together give a square (443556 = 666²).

The spelling of 43111112445 in words is "forty-three billion, one hundred eleven million, one hundred twelve thousand, four hundred forty-five".