11541104681 has 2 divisors, whose sum is σ = 11541104682. Its totient is φ = 11541104680.

The previous prime is 11541104633. The next prime is 11541104689. The reversal of 11541104681 is 18640114511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11466126400 + 74978281 = 107080^2 + 8659^2 .

It is an emirp because it is prime and its reverse (18640114511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11541104681 - 2¹⁰ = 11541103657 is a prime.

It is a super-2 number, since 2×11541104681² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11541104689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5770552340 + 5770552341.

It is an arithmetic number, because the mean of its divisors is an integer number (5770552341).

Almost surely, 2^11541104681 is an apocalyptic number.

It is an amenable number.

11541104681 is a deficient number, since it is larger than the sum of its proper divisors (1).

11541104681 is an equidigital number, since it uses as much as digits as its factorization.

11541104681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 32.

The spelling of 11541104681 in words is "eleven billion, five hundred forty-one million, one hundred four thousand, six hundred eighty-one".