100321012 has 48 divisors (see below), whose sum is σ = 205752960. Its totient is φ = 42291200.

The previous prime is 100321003. The next prime is 100321037. The reversal of 100321012 is 210123001.

It is a self number, because there is not a number n which added to its sum of digits gives 100321012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52164 + ... + 54052.

It is an arithmetic number, because the mean of its divisors is an integer number (4286520).

Almost surely, 2^100321012 is an apocalyptic number.

It is an amenable number.

100321012 is an abundant number, since it is smaller than the sum of its proper divisors (105431948).

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

100321012 is a wasteful number, since it uses less digits than its factorization.

100321012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1990 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 100321012 is about 10016.0377395455. The cubic root of 100321012 is about 464.6550214234.

Adding to 100321012 its reverse (210123001), we get a palindrome (310444013).

The spelling of 100321012 in words is "one hundred million, three hundred twenty-one thousand, twelve".