11518923 has 8 divisors (see below), whose sum is σ = 16540048. Its totient is φ = 7088544.

The previous prime is 11518919. The next prime is 11518943. The reversal of 11518923 is 32981511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11518923 - 2² = 11518919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11518943) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147640 + ... + 147717.

It is an arithmetic number, because the mean of its divisors is an integer number (2067506).

Almost surely, 2^11518923 is an apocalyptic number.

11518923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11518923 is a deficient number, since it is larger than the sum of its proper divisors (5021125).

11518923 is a wasteful number, since it uses less digits than its factorization.

11518923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295373.

The product of its digits is 2160, while the sum is 30.

The square root of 11518923 is about 3393.9538889030. The cubic root of 11518923 is about 225.8416085468.

The spelling of 11518923 in words is "eleven million, five hundred eighteen thousand, nine hundred twenty-three".