23122812 has 12 divisors (see below), whose sum is σ = 53953256. Its totient is φ = 7707600.

The previous prime is 23122769. The next prime is 23122819. The reversal of 23122812 is 21822132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122819) 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 3 ways as a sum of consecutive naturals, for example, 963439 + ... + 963462.

Almost surely, 2^23122812 is an apocalyptic number.

It is an amenable number.

23122812 is an abundant number, since it is smaller than the sum of its proper divisors (30830444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23122812 is a wasteful number, since it uses less digits than its factorization.

23122812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1926908 (or 1926906 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 23122812 is about 4808.6185126292. The cubic root of 23122812 is about 284.8919750649.

Adding to 23122812 its reverse (21822132), we get a palindrome (44944944).

The spelling of 23122812 in words is "twenty-three million, one hundred twenty-two thousand, eight hundred twelve".