11131442551441 has 2 divisors, whose sum is σ = 11131442551442. Its totient is φ = 11131442551440.

The previous prime is 11131442551421. The next prime is 11131442551451. The reversal of 11131442551441 is 14415524413111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8988963385600 + 2142479165841 = 2998160^2 + 1463721^2 .

It is a cyclic number.

It is not a de Polignac number, because 11131442551441 - 2¹⁵ = 11131442518673 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11131442551441.

It is not a weakly prime, because it can be changed into another prime (11131442551421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565721275720 + 5565721275721.

It is an arithmetic number, because the mean of its divisors is an integer number (5565721275721).

Almost surely, 2^{11131442551441} is an apocalyptic number.

It is an amenable number.

11131442551441 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131442551441 is an equidigital number, since it uses as much as digits as its factorization.

11131442551441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38400, while the sum is 37.

Adding to 11131442551441 its reverse (14415524413111), we get a palindrome (25546966964552).

The spelling of 11131442551441 in words is "eleven trillion, one hundred thirty-one billion, four hundred forty-two million, five hundred fifty-one thousand, four hundred forty-one".