20112324102109 has 2 divisors, whose sum is σ = 20112324102110. Its totient is φ = 20112324102108.

The previous prime is 20112324102061. The next prime is 20112324102121. The reversal of 20112324102109 is 90120142321102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17833703662009 + 2278620440100 = 4222997^2 + 1509510^2 .

It is a cyclic number.

It is not a de Polignac number, because 20112324102109 - 2²⁹ = 20111787231197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20112324102509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10056162051054 + 10056162051055.

It is an arithmetic number, because the mean of its divisors is an integer number (10056162051055).

Almost surely, 2^{20112324102109} is an apocalyptic number.

It is an amenable number.

20112324102109 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112324102109 is an equidigital number, since it uses as much as digits as its factorization.

20112324102109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 20112324102109 in words is "twenty trillion, one hundred twelve billion, three hundred twenty-four million, one hundred two thousand, one hundred nine".