210102120200123 has 2 divisors, whose sum is σ = 210102120200124. Its totient is φ = 210102120200122.

The previous prime is 210102120200081. The next prime is 210102120200149. The reversal of 210102120200123 is 321002021201012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210102120200123 - 2¹⁰ = 210102120199099 is a prime.

It is not a weakly prime, because it can be changed into another prime (210105120200123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051060100061 + 105051060100062.

It is an arithmetic number, because the mean of its divisors is an integer number (105051060100062).

Almost surely, 2^{210102120200123} is an apocalyptic number.

210102120200123 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102120200123 is an equidigital number, since it uses as much as digits as its factorization.

210102120200123 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 17.

Adding to 210102120200123 its reverse (321002021201012), we get a palindrome (531104141401135).

The spelling of 210102120200123 in words is "two hundred ten trillion, one hundred two billion, one hundred twenty million, two hundred thousand, one hundred twenty-three".