11312123 has 4 divisors (see below), whose sum is σ = 11977560. Its totient is φ = 10646688.

The previous prime is 11312111. The next prime is 11312177. The reversal of 11312123 is 32121311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32121311 = 59 ⋅544429.

It is a cyclic number.

It is not a de Polignac number, because 11312123 - 2¹⁸ = 11049979 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11312098 and 11312107.

It is not an unprimeable number, because it can be changed into a prime (11312183) 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, 332693 + ... + 332726.

It is an arithmetic number, because the mean of its divisors is an integer number (2994390).

Almost surely, 2^11312123 is an apocalyptic number.

11312123 is a deficient number, since it is larger than the sum of its proper divisors (665437).

11312123 is an equidigital number, since it uses as much as digits as its factorization.

11312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665436.

The product of its digits is 36, while the sum is 14.

The square root of 11312123 is about 3363.3499669229. The cubic root of 11312123 is about 224.4819224105.

Adding to 11312123 its reverse (32121311), we get a palindrome (43433434).

The spelling of 11312123 in words is "eleven million, three hundred twelve thousand, one hundred twenty-three".