11115923 has 32 divisors (see below), whose sum is σ = 14708736. Its totient is φ = 8160768.

The previous prime is 11115917. The next prime is 11115953. The reversal of 11115923 is 32951111.

It is not a de Polignac number, because 11115923 - 2⁶ = 11115859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (11115913) 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 31 ways as a sum of consecutive naturals, for example, 98315 + ... + 98427.

It is an arithmetic number, because the mean of its divisors is an integer number (459648).

Almost surely, 2^11115923 is an apocalyptic number.

11115923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11115923 is a deficient number, since it is larger than the sum of its proper divisors (3592813).

11115923 is a wasteful number, since it uses less digits than its factorization.

11115923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203.

The product of its digits is 270, while the sum is 23.

The square root of 11115923 is about 3334.0550385379. The cubic root of 11115923 is about 223.1765244148.

The spelling of 11115923 in words is "eleven million, one hundred fifteen thousand, nine hundred twenty-three".