100000212120043 has 2 divisors, whose sum is σ = 100000212120044. Its totient is φ = 100000212120042.

The previous prime is 100000212119989. The next prime is 100000212120073. The reversal of 100000212120043 is 340021212000001.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000212120043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100000212119999 and 100000212120026.

It is not a weakly prime, because it can be changed into another prime (100000212120073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000106060021 + 50000106060022.

It is an arithmetic number, because the mean of its divisors is an integer number (50000106060022).

Almost surely, 2^{100000212120043} is an apocalyptic number.

100000212120043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000212120043 is an equidigital number, since it uses as much as digits as its factorization.

100000212120043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 100000212120043 its reverse (340021212000001), we get a palindrome (440021424120044).

The spelling of 100000212120043 in words is "one hundred trillion, two hundred twelve million, one hundred twenty thousand, forty-three".