2101005120023 has 2 divisors, whose sum is σ = 2101005120024. Its totient is φ = 2101005120022.

The previous prime is 2101005119971. The next prime is 2101005120073. The reversal of 2101005120023 is 3200215001012.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101005120023 - 2⁸ = 2101005119767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2101005119983 and 2101005120010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101005120073) 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, 1050502560011 + 1050502560012.

It is an arithmetic number, because the mean of its divisors is an integer number (1050502560012).

Almost surely, 2^{2101005120023} is an apocalyptic number.

2101005120023 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101005120023 is an equidigital number, since it uses as much as digits as its factorization.

2101005120023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 17.

The spelling of 2101005120023 in words is "two trillion, one hundred one billion, five million, one hundred twenty thousand, twenty-three".