11985123 has 8 divisors (see below), whose sum is σ = 16009488. Its totient is φ = 7975424.

The previous prime is 11985121. The next prime is 11985131. The reversal of 11985123 is 32158911.

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

It is a cyclic number.

It is not a de Polignac number, because 11985123 - 2¹ = 11985121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11985121) 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 7 ways as a sum of consecutive naturals, for example, 1590 + ... + 5147.

It is an arithmetic number, because the mean of its divisors is an integer number (2001186).

Almost surely, 2^11985123 is an apocalyptic number.

11985123 is a deficient number, since it is larger than the sum of its proper divisors (4024365).

11985123 is an equidigital number, since it uses as much as digits as its factorization.

11985123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7333.

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

The square root of 11985123 is about 3461.9536392043. The cubic root of 11985123 is about 228.8481987537.

The spelling of 11985123 in words is "eleven million, nine hundred eighty-five thousand, one hundred twenty-three".