11123130125 has 8 divisors (see below), whose sum is σ = 13881666552. Its totient is φ = 8898504000.

The previous prime is 11123130113. The next prime is 11123130127. The reversal of 11123130125 is 52103132111.

It can be written as a sum of positive squares in 4 ways, for example, as 721781956 + 10401348169 = 26866^2 + 101987^2 .

It is not a de Polignac number, because 11123130125 - 2¹⁸ = 11122867981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11123130097 and 11123130106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123130127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44492396 + ... + 44492645.

It is an arithmetic number, because the mean of its divisors is an integer number (1735208319).

Almost surely, 2^11123130125 is an apocalyptic number.

It is an amenable number.

11123130125 is a deficient number, since it is larger than the sum of its proper divisors (2758536427).

11123130125 is an frugal number, since it uses more digits than its factorization.

11123130125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88985056 (or 88985046 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 11123130125 its reverse (52103132111), we get a palindrome (63226262236).

The spelling of 11123130125 in words is "eleven billion, one hundred twenty-three million, one hundred thirty thousand, one hundred twenty-five".