100331243 has 8 divisors (see below), whose sum is σ = 101132976. Its totient is φ = 99532800.

The previous prime is 100331237. The next prime is 100331249. The reversal of 100331243 is 342133001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100331237) and next prime (100331249).

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 100331243 - 2¹⁶ = 100265707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100331249) 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, 123308 + ... + 124118.

It is an arithmetic number, because the mean of its divisors is an integer number (12641622).

Almost surely, 2^100331243 is an apocalyptic number.

100331243 is a deficient number, since it is larger than the sum of its proper divisors (801733).

100331243 is an equidigital number, since it uses as much as digits as its factorization.

100331243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 100331243 is about 10016.5484574278. The cubic root of 100331243 is about 464.6708164658.

Adding to 100331243 its reverse (342133001), we get a palindrome (442464244).

The spelling of 100331243 in words is "one hundred million, three hundred thirty-one thousand, two hundred forty-three".