211111232147 has 2 divisors, whose sum is σ = 211111232148. Its totient is φ = 211111232146.

The previous prime is 211111232093. The next prime is 211111232159. The reversal of 211111232147 is 741232111112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211111232147 - 2¹⁸ = 211110970003 is a prime.

It is not a weakly prime, because it can be changed into another prime (211111232197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105555616073 + 105555616074.

It is an arithmetic number, because the mean of its divisors is an integer number (105555616074).

Almost surely, 2^211111232147 is an apocalyptic number.

211111232147 is a deficient number, since it is larger than the sum of its proper divisors (1).

211111232147 is an equidigital number, since it uses as much as digits as its factorization.

211111232147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 672, while the sum is 26.

Adding to 211111232147 its reverse (741232111112), we get a palindrome (952343343259).

The spelling of 211111232147 in words is "two hundred eleven billion, one hundred eleven million, two hundred thirty-two thousand, one hundred forty-seven".