11451344261543 has 2 divisors, whose sum is σ = 11451344261544. Its totient is φ = 11451344261542.

The previous prime is 11451344261519. The next prime is 11451344261563. The reversal of 11451344261543 is 34516244315411.

It is a happy number.

11451344261543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11451344261543 - 2¹² = 11451344257447 is a prime.

It is a super-2 number, since 2×11451344261543² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11451344261494 and 11451344261503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11451344261503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5725672130771 + 5725672130772.

It is an arithmetic number, because the mean of its divisors is an integer number (5725672130772).

Almost surely, 2^{11451344261543} is an apocalyptic number.

11451344261543 is a deficient number, since it is larger than the sum of its proper divisors (1).

11451344261543 is an equidigital number, since it uses as much as digits as its factorization.

11451344261543 is an evil number, because the sum of its binary digits is even.

The product of its digits is 691200, while the sum is 44.

Adding to 11451344261543 its reverse (34516244315411), we get a palindrome (45967588576954).

The spelling of 11451344261543 in words is "eleven trillion, four hundred fifty-one billion, three hundred forty-four million, two hundred sixty-one thousand, five hundred forty-three".