20112099990029 has 2 divisors, whose sum is σ = 20112099990030. Its totient is φ = 20112099990028.

The previous prime is 20112099990007. The next prime is 20112099990043. The reversal of 20112099990029 is 92009999021102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16615487964100 + 3496612025929 = 4076210^2 + 1869923^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112099990029 - 2⁴⁰ = 19012588362253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112099590029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056049995014 + 10056049995015.

It is an arithmetic number, because the mean of its divisors is an integer number (10056049995015).

Almost surely, 2^{20112099990029} is an apocalyptic number.

It is an amenable number.

20112099990029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112099990029 is an equidigital number, since it uses as much as digits as its factorization.

20112099990029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 472392, while the sum is 53.

The spelling of 20112099990029 in words is "twenty trillion, one hundred twelve billion, ninety-nine million, nine hundred ninety thousand, twenty-nine".