101816650129 has 2 divisors, whose sum is σ = 101816650130. Its totient is φ = 101816650128.

The previous prime is 101816650109. The next prime is 101816650141. The reversal of 101816650129 is 921056618101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98375067904 + 3441582225 = 313648^2 + 58665^2 .

It is a cyclic number.

It is not a de Polignac number, because 101816650129 - 2²³ = 101808261521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101816650091 and 101816650100.

It is not a weakly prime, because it can be changed into another prime (101816650109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50908325064 + 50908325065.

It is an arithmetic number, because the mean of its divisors is an integer number (50908325065).

Almost surely, 2^101816650129 is an apocalyptic number.

It is an amenable number.

101816650129 is a deficient number, since it is larger than the sum of its proper divisors (1).

101816650129 is an equidigital number, since it uses as much as digits as its factorization.

101816650129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 40.

The spelling of 101816650129 in words is "one hundred one billion, eight hundred sixteen million, six hundred fifty thousand, one hundred twenty-nine".