11124131211 has 24 divisors (see below), whose sum is σ = 16174192320. Its totient is φ = 7367295600.

The previous prime is 11124131197. The next prime is 11124131231. The reversal of 11124131211 is 11213142111.

11124131211 is a `hidden beast` number, since 111 + 241 + 312 + 1 + 1 = 666.

It is not a de Polignac number, because 11124131211 - 2²¹ = 11122034059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11124131231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1079200 + ... + 1089458.

It is an arithmetic number, because the mean of its divisors is an integer number (673924680).

Almost surely, 2^11124131211 is an apocalyptic number.

11124131211 is a deficient number, since it is larger than the sum of its proper divisors (5050061109).

11124131211 is a wasteful number, since it uses less digits than its factorization.

11124131211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11047 (or 11044 counting only the distinct ones).

The product of its digits is 48, while the sum is 18.

Adding to 11124131211 its reverse (11213142111), we get a palindrome (22337273322).

The spelling of 11124131211 in words is "eleven billion, one hundred twenty-four million, one hundred thirty-one thousand, two hundred eleven".