100212043 has 2 divisors, whose sum is σ = 100212044. Its totient is φ = 100212042.

The previous prime is 100211981. The next prime is 100212067. The reversal of 100212043 is 340212001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100212043 - 2¹⁷ = 100080971 is a prime.

It is not a weakly prime, because it can be changed into another prime (100212083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50106021 + 50106022.

It is an arithmetic number, because the mean of its divisors is an integer number (50106022).

Almost surely, 2^100212043 is an apocalyptic number.

100212043 is a deficient number, since it is larger than the sum of its proper divisors (1).

100212043 is an equidigital number, since it uses as much as digits as its factorization.

100212043 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 13.

The square root of 100212043 is about 10010.5965356716. The cubic root of 100212043 is about 464.4867238897.

Adding to 100212043 its reverse (340212001), we get a palindrome (440424044).

The spelling of 100212043 in words is "one hundred million, two hundred twelve thousand, forty-three".