100201109 has 2 divisors, whose sum is σ = 100201110. Its totient is φ = 100201108.

The previous prime is 100201103. The next prime is 100201139. The reversal of 100201109 is 901102001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57912100 + 42289009 = 7610^2 + 6503^2 .

It is a cyclic number.

It is not a de Polignac number, because 100201109 - 2⁸ = 100200853 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100201093 and 100201102.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100201103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50100554 + 50100555.

It is an arithmetic number, because the mean of its divisors is an integer number (50100555).

Almost surely, 2^100201109 is an apocalyptic number.

It is an amenable number.

100201109 is a deficient number, since it is larger than the sum of its proper divisors (1).

100201109 is an equidigital number, since it uses as much as digits as its factorization.

100201109 is an evil number, because the sum of its binary digits is even.

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

The square root of 100201109 is about 10010.0503994735. The cubic root of 100201109 is about 464.4698301033.

The spelling of 100201109 in words is "one hundred million, two hundred one thousand, one hundred nine".