102443312 has 20 divisors (see below), whose sum is σ = 205329120. Its totient is φ = 49455168.

The previous prime is 102443303. The next prime is 102443333. The reversal of 102443312 is 213344201.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 109928 + ... + 110855.

It is an arithmetic number, because the mean of its divisors is an integer number (10266456).

Almost surely, 2^102443312 is an apocalyptic number.

It is an amenable number.

102443312 is an abundant number, since it is smaller than the sum of its proper divisors (102885808).

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

102443312 is a wasteful number, since it uses less digits than its factorization.

102443312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220820 (or 220814 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 102443312 is about 10121.4283576973. The cubic root of 102443312 is about 467.9087897832.

Adding to 102443312 its reverse (213344201), we get a palindrome (315787513).

The spelling of 102443312 in words is "one hundred two million, four hundred forty-three thousand, three hundred twelve".