210203090129 has 2 divisors, whose sum is σ = 210203090130. Its totient is φ = 210203090128.

The previous prime is 210203090107. The next prime is 210203090137. The reversal of 210203090129 is 921090302012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 147528969025 + 62674121104 = 384095^2 + 250348^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210203090129 is a prime.

It is not a weakly prime, because it can be changed into another prime (210203090029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105101545064 + 105101545065.

It is an arithmetic number, because the mean of its divisors is an integer number (105101545065).

Almost surely, 2^210203090129 is an apocalyptic number.

It is an amenable number.

210203090129 is a deficient number, since it is larger than the sum of its proper divisors (1).

210203090129 is an equidigital number, since it uses as much as digits as its factorization.

210203090129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 210203090129 in words is "two hundred ten billion, two hundred three million, ninety thousand, one hundred twenty-nine".