11305503454081 has 2 divisors, whose sum is σ = 11305503454082. Its totient is φ = 11305503454080.

The previous prime is 11305503454073. The next prime is 11305503454093. The reversal of 11305503454081 is 18045430550311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8440134746481 + 2865368707600 = 2905191^2 + 1692740^2 .

It is a cyclic number.

It is not a de Polignac number, because 11305503454081 - 2³ = 11305503454073 is a prime.

It is a super-2 number, since 2×11305503454081² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11305503454681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652751727040 + 5652751727041.

It is an arithmetic number, because the mean of its divisors is an integer number (5652751727041).

Almost surely, 2^{11305503454081} is an apocalyptic number.

It is an amenable number.

11305503454081 is a deficient number, since it is larger than the sum of its proper divisors (1).

11305503454081 is an equidigital number, since it uses as much as digits as its factorization.

11305503454081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 11305503454081 in words is "eleven trillion, three hundred five billion, five hundred three million, four hundred fifty-four thousand, eighty-one".