100312243 has 8 divisors (see below), whose sum is σ = 102131856. Its totient is φ = 98498400.

The previous prime is 100312151. The next prime is 100312253. The reversal of 100312243 is 342213001.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100312243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100312253) 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, 49080 + ... + 51082.

It is an arithmetic number, because the mean of its divisors is an integer number (12766482).

Almost surely, 2^100312243 is an apocalyptic number.

100312243 is a deficient number, since it is larger than the sum of its proper divisors (1819613).

100312243 is an equidigital number, since it uses as much as digits as its factorization.

100312243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 100312243 is about 10015.5999820280. The cubic root of 100312243 is about 464.6414826225.

Adding to 100312243 its reverse (342213001), we get a palindrome (442525244).

The spelling of 100312243 in words is "one hundred million, three hundred twelve thousand, two hundred forty-three".