100105000999543 has 2 divisors, whose sum is σ = 100105000999544. Its totient is φ = 100105000999542.

The previous prime is 100105000999483. The next prime is 100105000999621. The reversal of 100105000999543 is 345999000501001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100105000999543 - 2¹⁷ = 100105000868471 is a prime.

It is a super-2 number, since 2×100105000999543² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 100105000999493 and 100105000999502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100105000999043) 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 as a sum of consecutive naturals, namely, 50052500499771 + 50052500499772.

It is an arithmetic number, because the mean of its divisors is an integer number (50052500499772).

Almost surely, 2^{100105000999543} is an apocalyptic number.

100105000999543 is a deficient number, since it is larger than the sum of its proper divisors (1).

100105000999543 is an equidigital number, since it uses as much as digits as its factorization.

100105000999543 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 218700, while the sum is 46.

The spelling of 100105000999543 in words is "one hundred trillion, one hundred five billion, nine hundred ninety-nine thousand, five hundred forty-three".