11131323441 has 32 divisors (see below), whose sum is σ = 17650744320. Its totient is φ = 6107500224.

The previous prime is 11131323433. The next prime is 11131323457. The reversal of 11131323441 is 14432313111.

It is a happy number.

It is not a de Polignac number, because 11131323441 - 2³ = 11131323433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11131323341) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51190 + ... + 157743.

It is an arithmetic number, because the mean of its divisors is an integer number (551585760).

Almost surely, 2^11131323441 is an apocalyptic number.

It is an amenable number.

11131323441 is a deficient number, since it is larger than the sum of its proper divisors (6519420879).

11131323441 is a wasteful number, since it uses less digits than its factorization.

11131323441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209045.

The product of its digits is 864, while the sum is 24.

Adding to 11131323441 its reverse (14432313111), we get a palindrome (25563636552).

The spelling of 11131323441 in words is "eleven billion, one hundred thirty-one million, three hundred twenty-three thousand, four hundred forty-one".