11231875906 has 4 divisors (see below), whose sum is σ = 16847813862. Its totient is φ = 5615937952.

The previous prime is 11231875891. The next prime is 11231875909. The reversal of 11231875906 is 60957813211.

11231875906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 60957813211 = 29 ⋅2101993559.

It can be written as a sum of positive squares in only one way, i.e., 10538870281 + 693005625 = 102659^2 + 26325^2 .

It is not an unprimeable number, because it can be changed into a prime (11231875909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2807968975 + ... + 2807968978.

Almost surely, 2^11231875906 is an apocalyptic number.

11231875906 is a deficient number, since it is larger than the sum of its proper divisors (5615937956).

11231875906 is an equidigital number, since it uses as much as digits as its factorization.

11231875906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5615937955.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 11231875906 in words is "eleven billion, two hundred thirty-one million, eight hundred seventy-five thousand, nine hundred six".