11131145441 has 8 divisors (see below), whose sum is σ = 12040198464. Its totient is φ = 10229636880.

The previous prime is 11131145423. The next prime is 11131145447. The reversal of 11131145441 is 14454113111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11131145441 - 2¹⁴ = 11131129057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11131145441.

It is not an unprimeable number, because it can be changed into a prime (11131145447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1883045 + ... + 1888946.

It is an arithmetic number, because the mean of its divisors is an integer number (1505024808).

Almost surely, 2^11131145441 is an apocalyptic number.

It is an amenable number.

11131145441 is a deficient number, since it is larger than the sum of its proper divisors (909053023).

11131145441 is a wasteful number, since it uses less digits than its factorization.

11131145441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3772231.

The product of its digits is 960, while the sum is 26.

Adding to 11131145441 its reverse (14454113111), we get a palindrome (25585258552).

The spelling of 11131145441 in words is "eleven billion, one hundred thirty-one million, one hundred forty-five thousand, four hundred forty-one".