11044421431 has 2 divisors, whose sum is σ = 11044421432. Its totient is φ = 11044421430.

The previous prime is 11044421411. The next prime is 11044421461. The reversal of 11044421431 is 13412444011.

It is a weak prime.

It is an emirp because it is prime and its reverse (13412444011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11044421431 - 2¹⁷ = 11044290359 is a prime.

It is a super-2 number, since 2×11044421431² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11044421396 and 11044421405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11044421411) 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, 5522210715 + 5522210716.

It is an arithmetic number, because the mean of its divisors is an integer number (5522210716).

Almost surely, 2^11044421431 is an apocalyptic number.

11044421431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11044421431 is an equidigital number, since it uses as much as digits as its factorization.

11044421431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 11044421431 its reverse (13412444011), we get a palindrome (24456865442).

The spelling of 11044421431 in words is "eleven billion, forty-four million, four hundred twenty-one thousand, four hundred thirty-one".