1111400043 has 32 divisors (see below), whose sum is σ = 1710299136. Its totient is φ = 636501888.

The previous prime is 1111400039. The next prime is 1111400071. The reversal of 1111400043 is 3400041111.

It is not a de Polignac number, because 1111400043 - 2² = 1111400039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111399995 and 1111400031.

It is not an unprimeable number, because it can be changed into a prime (1111400093) 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 in 31 ways as a sum of consecutive naturals, for example, 16446 + ... + 49932.

It is an arithmetic number, because the mean of its divisors is an integer number (53446848).

Almost surely, 2^1111400043 is an apocalyptic number.

1111400043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1111400043 is a deficient number, since it is larger than the sum of its proper divisors (598899093).

1111400043 is a wasteful number, since it uses less digits than its factorization.

1111400043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33563.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1111400043 is about 33337.6670299528. The cubic root of 1111400043 is about 1035.8339387262.

Adding to 1111400043 its reverse (3400041111), we get a palindrome (4511441154).

The spelling of 1111400043 in words is "one billion, one hundred eleven million, four hundred thousand, forty-three".