23211316 has 6 divisors (see below), whose sum is σ = 40619810. Its totient is φ = 11605656.

The previous prime is 23211313. The next prime is 23211319. The reversal of 23211316 is 61311232.

It is an interprime number because it is at equal distance from previous prime (23211313) and next prime (23211319).

It can be written as a sum of positive squares in only one way, i.e., 13351716 + 9859600 = 3654^2 + 3140^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23211293 and 23211302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23211311) 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 as a sum of consecutive naturals, namely, 2901411 + ... + 2901418.

Almost surely, 2^23211316 is an apocalyptic number.

It is an amenable number.

23211316 is a deficient number, since it is larger than the sum of its proper divisors (17408494).

23211316 is a wasteful number, since it uses less digits than its factorization.

23211316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5802833 (or 5802831 counting only the distinct ones).

The product of its digits is 216, while the sum is 19.

The square root of 23211316 is about 4817.8123666245. The cubic root of 23211316 is about 285.2549928805.

Adding to 23211316 its reverse (61311232), we get a palindrome (84522548).

The spelling of 23211316 in words is "twenty-three million, two hundred eleven thousand, three hundred sixteen".