100021012042243 has 16 divisors (see below), whose sum is σ = 105402121171200. Its totient is φ = 94651605298080.

The previous prime is 100021012042219. The next prime is 100021012042249. The reversal of 100021012042243 is 342240210120001.

It is a cyclic number.

It is not a de Polignac number, because 100021012042243 - 2³⁷ = 99883573088771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100021012042249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206493808 + ... + 206977618.

It is an arithmetic number, because the mean of its divisors is an integer number (6587632573200).

Almost surely, 2^{100021012042243} is an apocalyptic number.

100021012042243 is a deficient number, since it is larger than the sum of its proper divisors (5381109128957).

100021012042243 is a wasteful number, since it uses less digits than its factorization.

100021012042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495882.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 100021012042243 its reverse (342240210120001), we get a palindrome (442261222162244).

The spelling of 100021012042243 in words is "one hundred trillion, twenty-one billion, twelve million, forty-two thousand, two hundred forty-three".