1010200109 has 2 divisors, whose sum is σ = 1010200110. Its totient is φ = 1010200108.

The previous prime is 1010200091. The next prime is 1010200133. The reversal of 1010200109 is 9010020101.

Together with previous prime (1010200091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 921426025 + 88774084 = 30355^2 + 9422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010200109 - 2²⁴ = 993422893 is a prime.

It is a super-2 number, since 2×1010200109² = 2041008520447223762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1010200093 and 1010200102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010200309) 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, 505100054 + 505100055.

It is an arithmetic number, because the mean of its divisors is an integer number (505100055).

Almost surely, 2^1010200109 is an apocalyptic number.

It is an amenable number.

1010200109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010200109 is an equidigital number, since it uses as much as digits as its factorization.

1010200109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1010200109 is about 31783.6453069814. The cubic root of 1010200109 is about 1003.3885411529.

The spelling of 1010200109 in words is "one billion, ten million, two hundred thousand, one hundred nine".