100243043001 has 12 divisors (see below), whose sum is σ = 146288245012. Its totient is φ = 66139739136.

The previous prime is 100243042997. The next prime is 100243043011. The reversal of 100243043001 is 100340342001.

It can be written as a sum of positive squares in 2 ways, for example, as 35485517376 + 64757525625 = 188376^2 + 254475^2 .

It is not a de Polignac number, because 100243043001 - 2² = 100243042997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100243043011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57412096 + ... + 57413841.

Almost surely, 2^100243043001 is an apocalyptic number.

It is an amenable number.

100243043001 is a deficient number, since it is larger than the sum of its proper divisors (46045202011).

100243043001 is a wasteful number, since it uses less digits than its factorization.

100243043001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114826040 (or 114826037 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 100243043001 its reverse (100340342001), we get a palindrome (200583385002).

The spelling of 100243043001 in words is "one hundred billion, two hundred forty-three million, forty-three thousand, one".