100111243 has 8 divisors (see below), whose sum is σ = 101314080. Its totient is φ = 98915520.

The previous prime is 100111237. The next prime is 100111261. The reversal of 100111243 is 342111001.

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 100111243 - 2¹⁷ = 99980171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100111273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29778 + ... + 32968.

It is an arithmetic number, because the mean of its divisors is an integer number (12664260).

Almost surely, 2^100111243 is an apocalyptic number.

100111243 is a deficient number, since it is larger than the sum of its proper divisors (1202837).

100111243 is a wasteful number, since it uses less digits than its factorization.

100111243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 100111243 is about 10005.5606039842. The cubic root of 100111243 is about 464.3309343344.

Adding to 100111243 its reverse (342111001), we get a palindrome (442222244).

The spelling of 100111243 in words is "one hundred million, one hundred eleven thousand, two hundred forty-three".