100103243 has 2 divisors, whose sum is σ = 100103244. Its totient is φ = 100103242.

The previous prime is 100103231. The next prime is 100103249. The reversal of 100103243 is 342301001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100103243 - 2¹² = 100099147 is a prime.

It is not a weakly prime, because it can be changed into another prime (100103249) 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 as a sum of consecutive naturals, namely, 50051621 + 50051622.

It is an arithmetic number, because the mean of its divisors is an integer number (50051622).

Almost surely, 2^100103243 is an apocalyptic number.

100103243 is a deficient number, since it is larger than the sum of its proper divisors (1).

100103243 is an equidigital number, since it uses as much as digits as its factorization.

100103243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 100103243 is about 10005.1608182977. The cubic root of 100103243 is about 464.3185656056.

Adding to 100103243 its reverse (342301001), we get a palindrome (442404244).

The spelling of 100103243 in words is "one hundred million, one hundred three thousand, two hundred forty-three".