11285311441 has 4 divisors (see below), whose sum is σ = 11285681392. Its totient is φ = 11284941492.

The previous prime is 11285311439. The next prime is 11285311451. The reversal of 11285311441 is 14411358211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11285311441 - 2¹ = 11285311439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11285311451) 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, 134655 + ... + 201748.

It is an arithmetic number, because the mean of its divisors is an integer number (2821420348).

Almost surely, 2^11285311441 is an apocalyptic number.

It is an amenable number.

11285311441 is a deficient number, since it is larger than the sum of its proper divisors (369951).

11285311441 is an equidigital number, since it uses as much as digits as its factorization.

11285311441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369950.

The product of its digits is 3840, while the sum is 31.

Adding to 11285311441 its reverse (14411358211), we get a palindrome (25696669652).

The spelling of 11285311441 in words is "eleven billion, two hundred eighty-five million, three hundred eleven thousand, four hundred forty-one".