11451541441 has 4 divisors (see below), whose sum is σ = 11451972052. Its totient is φ = 11451110832.

The previous prime is 11451541427. The next prime is 11451541481. The reversal of 11451541441 is 14414515411.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8998419600 + 2453121841 = 94860^2 + 49529^2 .

It is a cyclic number.

It is not a de Polignac number, because 11451541441 - 2⁷ = 11451541313 is a prime.

It is a super-2 number, since 2×11451541441² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11451541481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 172590 + ... + 229543.

It is an arithmetic number, because the mean of its divisors is an integer number (2862993013).

Almost surely, 2^11451541441 is an apocalyptic number.

It is an amenable number.

11451541441 is a deficient number, since it is larger than the sum of its proper divisors (430611).

11451541441 is an equidigital number, since it uses as much as digits as its factorization.

11451541441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430610.

The product of its digits is 6400, while the sum is 31.

The spelling of 11451541441 in words is "eleven billion, four hundred fifty-one million, five hundred forty-one thousand, four hundred forty-one".