23321516 has 12 divisors (see below), whose sum is σ = 41234088. Its totient is φ = 11540352.

The previous prime is 23321491. The next prime is 23321521. The reversal of 23321516 is 61512332.

It is a junction number, because it is equal to n+sod(n) for n = 23321491 and 23321500.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29666 + ... + 30441.

It is an arithmetic number, because the mean of its divisors is an integer number (3436174).

Almost surely, 2^23321516 is an apocalyptic number.

It is an amenable number.

23321516 is a deficient number, since it is larger than the sum of its proper divisors (17912572).

23321516 is a wasteful number, since it uses less digits than its factorization.

23321516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60208 (or 60206 counting only the distinct ones).

The product of its digits is 1080, while the sum is 23.

The square root of 23321516 is about 4829.2355502709. The cubic root of 23321516 is about 285.7057138857.

Adding to 23321516 its reverse (61512332), we get a palindrome (84833848).

The spelling of 23321516 in words is "twenty-three million, three hundred twenty-one thousand, five hundred sixteen".