11124504131 has 4 divisors (see below), whose sum is σ = 11980235232. Its totient is φ = 10268773032.

The previous prime is 11124504113. The next prime is 11124504191. The reversal of 11124504131 is 13140542111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13140542111 = 241 ⋅54525071.

It is a cyclic number.

It is not a de Polignac number, because 11124504131 - 2²⁶ = 11057395267 is a prime.

It is a super-2 number, since 2×11124504131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11124504097 and 11124504106.

It is not an unprimeable number, because it can be changed into a prime (11124504191) 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, 427865531 + ... + 427865556.

It is an arithmetic number, because the mean of its divisors is an integer number (2995058808).

Almost surely, 2^11124504131 is an apocalyptic number.

11124504131 is a deficient number, since it is larger than the sum of its proper divisors (855731101).

11124504131 is an equidigital number, since it uses as much as digits as its factorization.

11124504131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 855731100.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 11124504131 in words is "eleven billion, one hundred twenty-four million, five hundred four thousand, one hundred thirty-one".