211100102047 has 2 divisors, whose sum is σ = 211100102048. Its totient is φ = 211100102046.

The previous prime is 211100102023. The next prime is 211100102063. The reversal of 211100102047 is 740201001112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211100102047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211100102747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105550051023 + 105550051024.

It is an arithmetic number, because the mean of its divisors is an integer number (105550051024).

Almost surely, 2^211100102047 is an apocalyptic number.

211100102047 is a deficient number, since it is larger than the sum of its proper divisors (1).

211100102047 is an equidigital number, since it uses as much as digits as its factorization.

211100102047 is an evil number, because the sum of its binary digits is even.

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

Adding to 211100102047 its reverse (740201001112), we get a palindrome (951301103159).

The spelling of 211100102047 in words is "two hundred eleven billion, one hundred million, one hundred two thousand, forty-seven".