11001400043 has 16 divisors (see below), whose sum is σ = 12247842816. Its totient is φ = 9828424320.

The previous prime is 11001400037. The next prime is 11001400073. The reversal of 11001400043 is 34000410011.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11001400043 is a prime.

It is a super-2 number, since 2×11001400043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001400073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56171 + ... + 158612.

It is an arithmetic number, because the mean of its divisors is an integer number (765490176).

Almost surely, 2^11001400043 is an apocalyptic number.

11001400043 is a deficient number, since it is larger than the sum of its proper divisors (1246442773).

11001400043 is a wasteful number, since it uses less digits than its factorization.

11001400043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214954.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 11001400043 its reverse (34000410011), we get a palindrome (45001810054).

The spelling of 11001400043 in words is "eleven billion, one million, four hundred thousand, forty-three".