23320312 has 8 divisors (see below), whose sum is σ = 43725600. Its totient is φ = 11660152.

The previous prime is 23320291. The next prime is 23320313. The reversal of 23320312 is 21302332.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23320313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1457512 + ... + 1457527.

It is an arithmetic number, because the mean of its divisors is an integer number (5465700).

Almost surely, 2^23320312 is an apocalyptic number.

It is an amenable number.

23320312 is a deficient number, since it is larger than the sum of its proper divisors (20405288).

23320312 is a wasteful number, since it uses less digits than its factorization.

23320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2915045 (or 2915041 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 23320312 is about 4829.1108912511. The cubic root of 23320312 is about 285.7007971727.

Adding to 23320312 its reverse (21302332), we get a palindrome (44622644).

It can be divided in two parts, 23320 and 312, that added together give a palindrome (23632).

The spelling of 23320312 in words is "twenty-three million, three hundred twenty thousand, three hundred twelve".