200111129 has 2 divisors, whose sum is σ = 200111130. Its totient is φ = 200111128.

The previous prime is 200111123. The next prime is 200111137. The reversal of 200111129 is 921111002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 193210000 + 6901129 = 13900^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 200111129 - 2⁴ = 200111113 is a prime.

It is not a weakly prime, because it can be changed into another prime (200111123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100055564 + 100055565.

It is an arithmetic number, because the mean of its divisors is an integer number (100055565).

Almost surely, 2^200111129 is an apocalyptic number.

It is an amenable number.

200111129 is a deficient number, since it is larger than the sum of its proper divisors (1).

200111129 is an equidigital number, since it uses as much as digits as its factorization.

200111129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The square root of 200111129 is about 14146.0640815741. The cubic root of 200111129 is about 584.9118419764.

The spelling of 200111129 in words is "two hundred million, one hundred eleven thousand, one hundred twenty-nine".