100321231 has 8 divisors (see below), whose sum is σ = 101780480. Its totient is φ = 98866872.

The previous prime is 100321223. The next prime is 100321261. The reversal of 100321231 is 132123001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100321231 - 2³ = 100321223 is a prime.

It is a super-2 number, since 2×100321231² = 20128698778710722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100321201) 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 7 ways as a sum of consecutive naturals, for example, 64246 + ... + 65788.

It is an arithmetic number, because the mean of its divisors is an integer number (12722560).

Almost surely, 2^100321231 is an apocalyptic number.

100321231 is a deficient number, since it is larger than the sum of its proper divisors (1459249).

100321231 is an equidigital number, since it uses as much as digits as its factorization.

100321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2445.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 100321231 is about 10016.0486720063. The cubic root of 100321231 is about 464.6553595359.

Adding to 100321231 its reverse (132123001), we get a palindrome (232444232).

The spelling of 100321231 in words is "one hundred million, three hundred twenty-one thousand, two hundred thirty-one".