23143812 has 48 divisors (see below), whose sum is σ = 55648320. Its totient is φ = 7483392.

The previous prime is 23143811. The next prime is 23143823. The reversal of 23143812 is 21834132.

It is not an unprimeable number, because it can be changed into a prime (23143811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68508 + ... + 68844.

It is an arithmetic number, because the mean of its divisors is an integer number (1159340).

Almost surely, 2^23143812 is an apocalyptic number.

It is an amenable number.

23143812 is an abundant number, since it is smaller than the sum of its proper divisors (32504508).

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

23143812 is a wasteful number, since it uses less digits than its factorization.

23143812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 500 (or 498 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 23143812 is about 4810.8015964078. The cubic root of 23143812 is about 284.9781946998.

Adding to 23143812 its reverse (21834132), we get a palindrome (44977944).

The spelling of 23143812 in words is "twenty-three million, one hundred forty-three thousand, eight hundred twelve".