109090909129 has 2 divisors, whose sum is σ = 109090909130. Its totient is φ = 109090909128.

The previous prime is 109090909093. The next prime is 109090909171. The reversal of 109090909129 is 921909090901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96484784400 + 12606124729 = 310620^2 + 112277^2 .

It is an emirp because it is prime and its reverse (921909090901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 109090909129 - 2¹⁷ = 109090778057 is a prime.

It is not a weakly prime, because it can be changed into another prime (109090909189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54545454564 + 54545454565.

It is an arithmetic number, because the mean of its divisors is an integer number (54545454565).

Almost surely, 2^109090909129 is an apocalyptic number.

It is an amenable number.

109090909129 is a deficient number, since it is larger than the sum of its proper divisors (1).

109090909129 is an equidigital number, since it uses as much as digits as its factorization.

109090909129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 49.

The spelling of 109090909129 in words is "one hundred nine billion, ninety million, nine hundred nine thousand, one hundred twenty-nine".