2112109203023 has 2 divisors, whose sum is σ = 2112109203024. Its totient is φ = 2112109203022.

The previous prime is 2112109202977. The next prime is 2112109203077. The reversal of 2112109203023 is 3203029012112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112109203023 - 2¹⁶ = 2112109137487 is a prime.

It is a super-2 number, since 2×2112109203023² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 2112109202983 and 2112109203001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112109203223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056054601511 + 1056054601512.

It is an arithmetic number, because the mean of its divisors is an integer number (1056054601512).

Almost surely, 2^{2112109203023} is an apocalyptic number.

2112109203023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112109203023 is an equidigital number, since it uses as much as digits as its factorization.

2112109203023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

It can be divided in two parts, 2112109 and 203023, that added together give a palindrome (2315132).

The spelling of 2112109203023 in words is "two trillion, one hundred twelve billion, one hundred nine million, two hundred three thousand, twenty-three".