11114144021 has 2 divisors, whose sum is σ = 11114144022. Its totient is φ = 11114144020.

The previous prime is 11114144017. The next prime is 11114144029. The reversal of 11114144021 is 12044141111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9464565796 + 1649578225 = 97286^2 + 40615^2 .

It is a cyclic number.

It is not a de Polignac number, because 11114144021 - 2² = 11114144017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11114143984 and 11114144002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11114144029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5557072010 + 5557072011.

It is an arithmetic number, because the mean of its divisors is an integer number (5557072011).

Almost surely, 2^11114144021 is an apocalyptic number.

It is an amenable number.

11114144021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11114144021 is an equidigital number, since it uses as much as digits as its factorization.

11114144021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 11114144021 its reverse (12044141111), we get a palindrome (23158285132).

The spelling of 11114144021 in words is "eleven billion, one hundred fourteen million, one hundred forty-four thousand, twenty-one".