11031032123 has 4 divisors (see below), whose sum is σ = 11045528328. Its totient is φ = 11016535920.

The previous prime is 11031032119. The next prime is 11031032191. The reversal of 11031032123 is 32123013011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32123013011 = 1187 ⋅27062353.

It is a cyclic number.

It is not a de Polignac number, because 11031032123 - 2² = 11031032119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031032113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7246961 + ... + 7248482.

It is an arithmetic number, because the mean of its divisors is an integer number (2761382082).

Almost surely, 2^11031032123 is an apocalyptic number.

11031032123 is a deficient number, since it is larger than the sum of its proper divisors (14496205).

11031032123 is an equidigital number, since it uses as much as digits as its factorization.

11031032123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14496204.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11031032123 its reverse (32123013011), we get a palindrome (43154045134).

The spelling of 11031032123 in words is "eleven billion, thirty-one million, thirty-two thousand, one hundred twenty-three".