2111020100243 has 2 divisors, whose sum is σ = 2111020100244. Its totient is φ = 2111020100242.

The previous prime is 2111020100219. The next prime is 2111020100263. The reversal of 2111020100243 is 3420010201112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2111020100243 - 2⁶ = 2111020100179 is a prime.

It is not a weakly prime, because it can be changed into another prime (2111020100263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055510050121 + 1055510050122.

It is an arithmetic number, because the mean of its divisors is an integer number (1055510050122).

Almost surely, 2^{2111020100243} is an apocalyptic number.

2111020100243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111020100243 is an equidigital number, since it uses as much as digits as its factorization.

2111020100243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2111020100243 its reverse (3420010201112), we get a palindrome (5531030301355).

The spelling of 2111020100243 in words is "two trillion, one hundred eleven billion, twenty million, one hundred thousand, two hundred forty-three".