100215231 has 8 divisors (see below), whose sum is σ = 133666560. Its totient is φ = 66787032.

The previous prime is 100215211. The next prime is 100215239. The reversal of 100215231 is 132512001.

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

It is not a de Polignac number, because 100215231 - 2¹⁰ = 100214207 is a prime.

It is a super-2 number, since 2×100215231² = 20086185048766722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100215231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100215239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14026 + ... + 19928.

It is an arithmetic number, because the mean of its divisors is an integer number (16708320).

Almost surely, 2^100215231 is an apocalyptic number.

100215231 is a deficient number, since it is larger than the sum of its proper divisors (33451329).

100215231 is an equidigital number, since it uses as much as digits as its factorization.

100215231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 100215231 is about 10010.7557656752. The cubic root of 100215231 is about 464.4916493389.

Adding to 100215231 its reverse (132512001), we get a palindrome (232727232).

The spelling of 100215231 in words is "one hundred million, two hundred fifteen thousand, two hundred thirty-one".