100134321 has 16 divisors (see below), whose sum is σ = 156710784. Its totient is φ = 55672704.

The previous prime is 100134289. The next prime is 100134337. The reversal of 100134321 is 123431001.

It is not a de Polignac number, because 100134321 - 2⁵ = 100134289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100134321.

It is not an unprimeable number, because it can be changed into a prime (100134121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63660 + ... + 65213.

It is an arithmetic number, because the mean of its divisors is an integer number (9794424).

Almost surely, 2^100134321 is an apocalyptic number.

It is an amenable number.

100134321 is a deficient number, since it is larger than the sum of its proper divisors (56576463).

100134321 is a wasteful number, since it uses less digits than its factorization.

100134321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128920.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 100134321 is about 10006.7137962470. The cubic root of 100134321 is about 464.3666113328.

Adding to 100134321 its reverse (123431001), we get a palindrome (223565322).

It can be divided in two parts, 100 and 134321, that added together give a triangular number (134421 = T₅₁₈).

The spelling of 100134321 in words is "one hundred million, one hundred thirty-four thousand, three hundred twenty-one".