11271623441 has 32 divisors (see below), whose sum is σ = 13547036160. Its totient is φ = 9264900096.

The previous prime is 11271623431. The next prime is 11271623443. The reversal of 11271623441 is 14432617211.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11271623441 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11271623398 and 11271623407.

It is not an unprimeable number, because it can be changed into a prime (11271623443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4605080 + ... + 4607526.

It is an arithmetic number, because the mean of its divisors is an integer number (423344880).

Almost surely, 2^11271623441 is an apocalyptic number.

It is an amenable number.

11271623441 is a deficient number, since it is larger than the sum of its proper divisors (2275412719).

11271623441 is a wasteful number, since it uses less digits than its factorization.

11271623441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3593.

The product of its digits is 8064, while the sum is 32.

The spelling of 11271623441 in words is "eleven billion, two hundred seventy-one million, six hundred twenty-three thousand, four hundred forty-one".