11311444427 has 2 divisors, whose sum is σ = 11311444428. Its totient is φ = 11311444426.

The previous prime is 11311444349. The next prime is 11311444471. The reversal of 11311444427 is 72444411311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11311444427 - 2¹⁸ = 11311182283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11311444393 and 11311444402.

It is not a weakly prime, because it can be changed into another prime (11311044427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655722213 + 5655722214.

It is an arithmetic number, because the mean of its divisors is an integer number (5655722214).

Almost surely, 2^11311444427 is an apocalyptic number.

11311444427 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311444427 is an equidigital number, since it uses as much as digits as its factorization.

11311444427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10752, while the sum is 32.

Adding to 11311444427 its reverse (72444411311), we get a palindrome (83755855738).

The spelling of 11311444427 in words is "eleven billion, three hundred eleven million, four hundred forty-four thousand, four hundred twenty-seven".