2100002111047 has 2 divisors, whose sum is σ = 2100002111048. Its totient is φ = 2100002111046.

The previous prime is 2100002111033. The next prime is 2100002111069. The reversal of 2100002111047 is 7401112000012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100002111047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100002114047) 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, 1050001055523 + 1050001055524.

It is an arithmetic number, because the mean of its divisors is an integer number (1050001055524).

Almost surely, 2^{2100002111047} is an apocalyptic number.

2100002111047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100002111047 is an equidigital number, since it uses as much as digits as its factorization.

2100002111047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 2100002111047 its reverse (7401112000012), we get a palindrome (9501114111059).

The spelling of 2100002111047 in words is "two trillion, one hundred billion, two million, one hundred eleven thousand, forty-seven".