11043430121 has 2 divisors, whose sum is σ = 11043430122. Its totient is φ = 11043430120.

The previous prime is 11043430091. The next prime is 11043430133. The reversal of 11043430121 is 12103434011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11011564096 + 31866025 = 104936^2 + 5645^2 .

It is a cyclic number.

It is not a de Polignac number, because 11043430121 - 2¹⁴ = 11043413737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11043430093 and 11043430102.

It is not a weakly prime, because it can be changed into another prime (11043430141) 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 as a sum of consecutive naturals, namely, 5521715060 + 5521715061.

It is an arithmetic number, because the mean of its divisors is an integer number (5521715061).

Almost surely, 2^11043430121 is an apocalyptic number.

It is an amenable number.

11043430121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11043430121 is an equidigital number, since it uses as much as digits as its factorization.

11043430121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11043430121 its reverse (12103434011), we get a palindrome (23146864132).

The spelling of 11043430121 in words is "eleven billion, forty-three million, four hundred thirty thousand, one hundred twenty-one".