23112387 has 12 divisors (see below), whose sum is σ = 33883720. Its totient is φ = 15177888.

The previous prime is 23112373. The next prime is 23112403. The reversal of 23112387 is 78321132.

It is not a de Polignac number, because 23112387 - 2²⁴ = 6335171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23112387.

It is not an unprimeable number, because it can be changed into a prime (23112317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18562 + ... + 19767.

Almost surely, 2^23112387 is an apocalyptic number.

23112387 is a deficient number, since it is larger than the sum of its proper divisors (10771333).

23112387 is a wasteful number, since it uses less digits than its factorization.

23112387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38402 (or 38399 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 23112387 is about 4807.5343992529. The cubic root of 23112387 is about 284.8491537838.

The spelling of 23112387 in words is "twenty-three million, one hundred twelve thousand, three hundred eighty-seven".