23102320 has 40 divisors (see below), whose sum is σ = 56875824. Its totient is φ = 8696832.

The previous prime is 23102267. The next prime is 23102341. The reversal of 23102320 is 2320132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 23102320.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7134 + ... + 9853.

Almost surely, 2^23102320 is an apocalyptic number.

23102320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23102320 is an abundant number, since it is smaller than the sum of its proper divisors (33773504).

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

23102320 is a wasteful number, since it uses less digits than its factorization.

23102320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17017 (or 17011 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23102320 is about 4806.4872828293. The cubic root of 23102320 is about 284.8077907855.

Adding to 23102320 its reverse (2320132), we get a palindrome (25422452).

The spelling of 23102320 in words is "twenty-three million, one hundred two thousand, three hundred twenty".