11871123 has 8 divisors (see below), whose sum is σ = 17267136. Its totient is φ = 7194600.

The previous prime is 11871107. The next prime is 11871133. The reversal of 11871123 is 32117811.

It is a happy number.

11871123 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11871123 - 2⁴ = 11871107 is a prime.

It is a super-2 number, since 2×11871123² = 281847122562258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11871093 and 11871102.

It is not an unprimeable number, because it can be changed into a prime (11871103) 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, 179833 + ... + 179898.

It is an arithmetic number, because the mean of its divisors is an integer number (2158392).

Almost surely, 2^11871123 is an apocalyptic number.

11871123 is a deficient number, since it is larger than the sum of its proper divisors (5396013).

11871123 is a wasteful number, since it uses less digits than its factorization.

11871123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359745.

The product of its digits is 336, while the sum is 24.

The square root of 11871123 is about 3445.4496078161. The cubic root of 11871123 is about 228.1203004724.

Adding to 11871123 its reverse (32117811), we get a palindrome (43988934).

The spelling of 11871123 in words is "eleven million, eight hundred seventy-one thousand, one hundred twenty-three".