2111011109047 has 2 divisors, whose sum is σ = 2111011109048. Its totient is φ = 2111011109046.

The previous prime is 2111011109033. The next prime is 2111011109057. The reversal of 2111011109047 is 7409011101112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111011109047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111011109027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055505554523 + 1055505554524.

It is an arithmetic number, because the mean of its divisors is an integer number (1055505554524).

Almost surely, 2^{2111011109047} is an apocalyptic number.

2111011109047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111011109047 is an equidigital number, since it uses as much as digits as its factorization.

2111011109047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 28.

The spelling of 2111011109047 in words is "two trillion, one hundred eleven billion, eleven million, one hundred nine thousand, forty-seven".