2108101209029 has 2 divisors, whose sum is σ = 2108101209030. Its totient is φ = 2108101209028.

The previous prime is 2108101208999. The next prime is 2108101209077. The reversal of 2108101209029 is 9209021018012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1853478030625 + 254623178404 = 1361425^2 + 504602^2 .

It is a cyclic number.

It is not a de Polignac number, because 2108101209029 - 2⁴⁰ = 1008589581253 is a prime.

It is a super-2 number, since 2×2108101209029² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2108101209029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2108101209329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054050604514 + 1054050604515.

It is an arithmetic number, because the mean of its divisors is an integer number (1054050604515).

Almost surely, 2^{2108101209029} is an apocalyptic number.

It is an amenable number.

2108101209029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2108101209029 is an equidigital number, since it uses as much as digits as its factorization.

2108101209029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 35.

The spelling of 2108101209029 in words is "two trillion, one hundred eight billion, one hundred one million, two hundred nine thousand, twenty-nine".