210102001129 has 2 divisors, whose sum is σ = 210102001130. Its totient is φ = 210102001128.

The previous prime is 210102001111. The next prime is 210102001177. The reversal of 210102001129 is 921100201012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 206341245504 + 3760755625 = 454248^2 + 61325^2 .

It is a cyclic number.

It is not a de Polignac number, because 210102001129 - 2²⁵ = 210068446697 is a prime.

It is not a weakly prime, because it can be changed into another prime (210102002129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105051000564 + 105051000565.

It is an arithmetic number, because the mean of its divisors is an integer number (105051000565).

Almost surely, 2^210102001129 is an apocalyptic number.

It is an amenable number.

210102001129 is a deficient number, since it is larger than the sum of its proper divisors (1).

210102001129 is an equidigital number, since it uses as much as digits as its factorization.

210102001129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The spelling of 210102001129 in words is "two hundred ten billion, one hundred two million, one thousand, one hundred twenty-nine".