210012100043 has 2 divisors, whose sum is σ = 210012100044. Its totient is φ = 210012100042.

The previous prime is 210012100019. The next prime is 210012100057. The reversal of 210012100043 is 340001210012.

It is an a-pointer prime, because the next prime (210012100057) can be obtained adding 210012100043 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210012100043 is a prime.

It is not a weakly prime, because it can be changed into another prime (210012100003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105006050021 + 105006050022.

It is an arithmetic number, because the mean of its divisors is an integer number (105006050022).

Almost surely, 2^210012100043 is an apocalyptic number.

210012100043 is a deficient number, since it is larger than the sum of its proper divisors (1).

210012100043 is an equidigital number, since it uses as much as digits as its factorization.

210012100043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 210012100043 its reverse (340001210012), we get a palindrome (550013310055).

The spelling of 210012100043 in words is "two hundred ten billion, twelve million, one hundred thousand, forty-three".