11130131123 has 4 divisors (see below), whose sum is σ = 11215094088. Its totient is φ = 11045168160.

The previous prime is 11130131113. The next prime is 11130131141. The reversal of 11130131123 is 32113103111.

11130131123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32113103111 = 47 ⋅683257513.

It is a cyclic number.

It is not a de Polignac number, because 11130131123 - 2⁴ = 11130131107 is a prime.

It is a super-2 number, since 2×11130131123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11130131113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42481286 + ... + 42481547.

It is an arithmetic number, because the mean of its divisors is an integer number (2803773522).

Almost surely, 2^11130131123 is an apocalyptic number.

11130131123 is a deficient number, since it is larger than the sum of its proper divisors (84962965).

11130131123 is an equidigital number, since it uses as much as digits as its factorization.

11130131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84962964.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11130131123 its reverse (32113103111), we get a palindrome (43243234234).

The spelling of 11130131123 in words is "eleven billion, one hundred thirty million, one hundred thirty-one thousand, one hundred twenty-three".