11130321123 has 6 divisors (see below), whose sum is σ = 16077130524. Its totient is φ = 7420214076.

The previous prime is 11130321109. The next prime is 11130321131. The reversal of 11130321123 is 32112303111.

It is a de Polignac number, because none of the positive numbers 2^k-11130321123 is a prime.

It is a super-2 number, since 2×11130321123² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11130321096 and 11130321105.

It is not an unprimeable number, because it can be changed into a prime (11130321143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 618351165 + ... + 618351182.

It is an arithmetic number, because the mean of its divisors is an integer number (2679521754).

Almost surely, 2^11130321123 is an apocalyptic number.

11130321123 is a deficient number, since it is larger than the sum of its proper divisors (4946809401).

11130321123 is a wasteful number, since it uses less digits than its factorization.

11130321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236702353 (or 1236702350 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11130321123 its reverse (32112303111), we get a palindrome (43242624234).

The spelling of 11130321123 in words is "eleven billion, one hundred thirty million, three hundred twenty-one thousand, one hundred twenty-three".