11878123 has 2 divisors, whose sum is σ = 11878124. Its totient is φ = 11878122.

The previous prime is 11878117. The next prime is 11878127. The reversal of 11878123 is 32187811.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11878123 - 2⁵ = 11878091 is a prime.

It is not a weakly prime, because it can be changed into another prime (11878127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5939061 + 5939062.

It is an arithmetic number, because the mean of its divisors is an integer number (5939062).

Almost surely, 2^11878123 is an apocalyptic number.

11878123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11878123 is an equidigital number, since it uses as much as digits as its factorization.

11878123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 31.

The square root of 11878123 is about 3446.4652907000. The cubic root of 11878123 is about 228.1651299391.

The spelling of 11878123 in words is "eleven million, eight hundred seventy-eight thousand, one hundred twenty-three".