100120209443 has 2 divisors, whose sum is σ = 100120209444. Its totient is φ = 100120209442.

The previous prime is 100120209437. The next prime is 100120209499. The reversal of 100120209443 is 344902021001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100120209443 - 2¹⁸ = 100119947299 is a prime.

It is not a weakly prime, because it can be changed into another prime (100120209143) 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, 50060104721 + 50060104722.

It is an arithmetic number, because the mean of its divisors is an integer number (50060104722).

Almost surely, 2^100120209443 is an apocalyptic number.

100120209443 is a deficient number, since it is larger than the sum of its proper divisors (1).

100120209443 is an equidigital number, since it uses as much as digits as its factorization.

100120209443 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The spelling of 100120209443 in words is "one hundred billion, one hundred twenty million, two hundred nine thousand, four hundred forty-three".