100443432243 has 64 divisors (see below), whose sum is σ = 169311559680. Its totient is φ = 51452064000.

The previous prime is 100443432217. The next prime is 100443432269. The reversal of 100443432243 is 342234344001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100443432217) and next prime (100443432269).

It is not a de Polignac number, because 100443432243 - 2¹² = 100443428147 is a prime.

It is a super-2 number, since 2×100443432243² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 100443432243.

It is not an unprimeable number, because it can be changed into a prime (100443432343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4768188 + ... + 4789206.

It is an arithmetic number, because the mean of its divisors is an integer number (2645493120).

Almost surely, 2^100443432243 is an apocalyptic number.

100443432243 is a deficient number, since it is larger than the sum of its proper divisors (68868127437).

100443432243 is a wasteful number, since it uses less digits than its factorization.

100443432243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21328.

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 100443432243 its reverse (342234344001), we get a palindrome (442677776244).

The spelling of 100443432243 in words is "one hundred billion, four hundred forty-three million, four hundred thirty-two thousand, two hundred forty-three".