100321130 has 48 divisors (see below), whose sum is σ = 226233000. Its totient is φ = 31747968.

The previous prime is 100321099. The next prime is 100321139. The reversal of 100321130 is 31123001.

It can be written as a sum of positive squares in 4 ways, for example, as 31281649 + 69039481 = 5593^2 + 8309^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100321139) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1505 + ... + 14244.

Almost surely, 2^100321130 is an apocalyptic number.

100321130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

100321130 is an abundant number, since it is smaller than the sum of its proper divisors (125911870).

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

100321130 is a wasteful number, since it uses less digits than its factorization.

100321130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15783 (or 15776 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 100321130 is about 10016.0436300967. The cubic root of 100321130 is about 464.6552036028.

Adding to 100321130 its reverse (31123001), we get a palindrome (131444131).

The spelling of 100321130 in words is "one hundred million, three hundred twenty-one thousand, one hundred thirty".