211103213311 has 2 divisors, whose sum is σ = 211103213312. Its totient is φ = 211103213310.

The previous prime is 211103213273. The next prime is 211103213327. The reversal of 211103213311 is 113312301112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211103213311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211103213011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105551606655 + 105551606656.

It is an arithmetic number, because the mean of its divisors is an integer number (105551606656).

Almost surely, 2^211103213311 is an apocalyptic number.

211103213311 is a deficient number, since it is larger than the sum of its proper divisors (1).

211103213311 is an equidigital number, since it uses as much as digits as its factorization.

211103213311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 211103213311 its reverse (113312301112), we get a palindrome (324415514423).

The spelling of 211103213311 in words is "two hundred eleven billion, one hundred three million, two hundred thirteen thousand, three hundred eleven".