11001001043 has 2 divisors, whose sum is σ = 11001001044. Its totient is φ = 11001001042.

The previous prime is 11001001003. The next prime is 11001001073. The reversal of 11001001043 is 34010010011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11001001043 - 2¹⁶ = 11000935507 is a prime.

It is not a weakly prime, because it can be changed into another prime (11001001003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500500521 + 5500500522.

It is an arithmetic number, because the mean of its divisors is an integer number (5500500522).

Almost surely, 2^11001001043 is an apocalyptic number.

11001001043 is a deficient number, since it is larger than the sum of its proper divisors (1).

11001001043 is an equidigital number, since it uses as much as digits as its factorization.

11001001043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11001001043 its reverse (34010010011), we get a palindrome (45011011054).

The spelling of 11001001043 in words is "eleven billion, one million, one thousand, forty-three".