11031123 has 4 divisors (see below), whose sum is σ = 14708168. Its totient is φ = 7354080.

The previous prime is 11031121. The next prime is 11031161. The reversal of 11031123 is 32113011.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11031123 - 2¹ = 11031121 is a prime.

It is a super-2 number, since 2×11031123² = 243371349282258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031099 and 11031108.

It is not an unprimeable number, because it can be changed into a prime (11031121) 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, 1838518 + ... + 1838523.

It is an arithmetic number, because the mean of its divisors is an integer number (3677042).

Almost surely, 2^11031123 is an apocalyptic number.

11031123 is a deficient number, since it is larger than the sum of its proper divisors (3677045).

11031123 is an equidigital number, since it uses as much as digits as its factorization.

11031123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677044.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11031123 is about 3321.3134450094. The cubic root of 11031123 is about 222.6075598291.

Adding to 11031123 its reverse (32113011), we get a palindrome (43144134).

The spelling of 11031123 in words is "eleven million, thirty-one thousand, one hundred twenty-three".