102320256 has 128 divisors (see below), whose sum is σ = 285485760. Its totient is φ = 32440320.

The previous prime is 102320201. The next prime is 102320279. The reversal of 102320256 is 652023201.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054800 + ... + 1054896.

Almost surely, 2^102320256 is an apocalyptic number.

102320256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102320256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142742880).

102320256 is an abundant number, since it is smaller than the sum of its proper divisors (183165504).

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

102320256 is an equidigital number, since it uses as much as digits as its factorization.

102320256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102320256 is about 10115.3475471681. The cubic root of 102320256 is about 467.7213623721.

Adding to 102320256 its reverse (652023201), we get a palindrome (754343457).

The spelling of 102320256 in words is "one hundred two million, three hundred twenty thousand, two hundred fifty-six".