11131124444 has 18 divisors (see below), whose sum is σ = 21411316752. Its totient is φ = 5059601800.

The previous prime is 11131124419. The next prime is 11131124447. The reversal of 11131124444 is 44442113111.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131124447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11498612 + ... + 11499579.

Almost surely, 2^11131124444 is an apocalyptic number.

It is an amenable number.

11131124444 is a deficient number, since it is larger than the sum of its proper divisors (10280192308).

11131124444 is a wasteful number, since it uses less digits than its factorization.

11131124444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22998217 (or 22998204 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

Adding to 11131124444 its reverse (44442113111), we get a palindrome (55573237555).

The spelling of 11131124444 in words is "eleven billion, one hundred thirty-one million, one hundred twenty-four thousand, four hundred forty-four".