2100211595813 has 2 divisors, whose sum is σ = 2100211595814. Its totient is φ = 2100211595812.

The previous prime is 2100211595773. The next prime is 2100211595827. The reversal of 2100211595813 is 3185951120012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2035866678244 + 64344917569 = 1426838^2 + 253663^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100211595813 - 2⁶ = 2100211595749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100211592813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050105797906 + 1050105797907.

It is an arithmetic number, because the mean of its divisors is an integer number (1050105797907).

Almost surely, 2^{2100211595813} is an apocalyptic number.

It is an amenable number.

2100211595813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100211595813 is an equidigital number, since it uses as much as digits as its factorization.

2100211595813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 38.

The spelling of 2100211595813 in words is "two trillion, one hundred billion, two hundred eleven million, five hundred ninety-five thousand, eight hundred thirteen".