210102199999943 has 2 divisors, whose sum is σ = 210102199999944. Its totient is φ = 210102199999942.

The previous prime is 210102199999903. The next prime is 210102200000029. The reversal of 210102199999943 is 349999991201012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 210102199999943 - 2⁸ = 210102199999687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210102199999903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051099999971 + 105051099999972.

It is an arithmetic number, because the mean of its divisors is an integer number (105051099999972).

Almost surely, 2^{210102199999943} is an apocalyptic number.

210102199999943 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102199999943 is an equidigital number, since it uses as much as digits as its factorization.

210102199999943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25509168, while the sum is 68.

The spelling of 210102199999943 in words is "two hundred ten trillion, one hundred two billion, one hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred forty-three".