11404344431 has 2 divisors, whose sum is σ = 11404344432. Its totient is φ = 11404344430.

The previous prime is 11404344397. The next prime is 11404344439. The reversal of 11404344431 is 13444340411.

It is a strong prime.

It is an emirp because it is prime and its reverse (13444340411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11404344431 is a prime.

It is a super-2 number, since 2×11404344431² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 11404344394 and 11404344403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11404344439) 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, 5702172215 + 5702172216.

It is an arithmetic number, because the mean of its divisors is an integer number (5702172216).

Almost surely, 2^11404344431 is an apocalyptic number.

11404344431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11404344431 is an equidigital number, since it uses as much as digits as its factorization.

11404344431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 11404344431 its reverse (13444340411), we get a palindrome (24848684842).

The spelling of 11404344431 in words is "eleven billion, four hundred four million, three hundred forty-four thousand, four hundred thirty-one".