210100001100043 has 2 divisors, whose sum is σ = 210100001100044. Its totient is φ = 210100001100042.

The previous prime is 210100001099981. The next prime is 210100001100083. The reversal of 210100001100043 is 340001100001012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210100001100043 - 2³³ = 210091411165451 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210100001099996 and 210100001100032.

It is not a weakly prime, because it can be changed into another prime (210100001100083) 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, 105050000550021 + 105050000550022.

It is an arithmetic number, because the mean of its divisors is an integer number (105050000550022).

Almost surely, 2^{210100001100043} is an apocalyptic number.

210100001100043 is a deficient number, since it is larger than the sum of its proper divisors (1).

210100001100043 is an equidigital number, since it uses as much as digits as its factorization.

210100001100043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 210100001100043 its reverse (340001100001012), we get a palindrome (550101101101055).

The spelling of 210100001100043 in words is "two hundred ten trillion, one hundred billion, one million, one hundred thousand, forty-three".