102003312 has 20 divisors (see below), whose sum is σ = 263508680. Its totient is φ = 34001088.

The previous prime is 102003289. The next prime is 102003331. The reversal of 102003312 is 213300201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

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, 1062487 + ... + 1062582.

It is an arithmetic number, because the mean of its divisors is an integer number (13175434).

Almost surely, 2^102003312 is an apocalyptic number.

102003312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102003312 is an abundant number, since it is smaller than the sum of its proper divisors (161505368).

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

102003312 is a wasteful number, since it uses less digits than its factorization.

102003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2125080 (or 2125074 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 102003312 is about 10099.6689054642. The cubic root of 102003312 is about 467.2379298895.

Adding to 102003312 its reverse (213300201), we get a palindrome (315303513).

The spelling of 102003312 in words is "one hundred two million, three thousand, three hundred twelve".