23120312 has 16 divisors (see below), whose sum is σ = 43401840. Its totient is φ = 11546496.

The previous prime is 23120311. The next prime is 23120329. The reversal of 23120312 is 21302132.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23120311) 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 3 ways as a sum of consecutive naturals, for example, 11408 + ... + 13280.

It is an arithmetic number, because the mean of its divisors is an integer number (2712615).

Almost surely, 2^23120312 is an apocalyptic number.

It is an amenable number.

23120312 is a deficient number, since it is larger than the sum of its proper divisors (20281528).

23120312 is a wasteful number, since it uses less digits than its factorization.

23120312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3422 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23120312 is about 4808.3585556820. The cubic root of 23120312 is about 284.8817073459.

Adding to 23120312 its reverse (21302132), we get a palindrome (44422444).

It can be divided in two parts, 23120 and 312, that added together give a palindrome (23432).

The spelling of 23120312 in words is "twenty-three million, one hundred twenty thousand, three hundred twelve".