211112202311 has 2 divisors, whose sum is σ = 211112202312. Its totient is φ = 211112202310.

The previous prime is 211112202307. The next prime is 211112202319. The reversal of 211112202311 is 113202211112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211112202311 - 2² = 211112202307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211112202311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211112202319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556101155 + 105556101156.

It is an arithmetic number, because the mean of its divisors is an integer number (105556101156).

Almost surely, 2^211112202311 is an apocalyptic number.

211112202311 is a deficient number, since it is larger than the sum of its proper divisors (1).

211112202311 is an equidigital number, since it uses as much as digits as its factorization.

211112202311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 211112202311 its reverse (113202211112), we get a palindrome (324314413423).

The spelling of 211112202311 in words is "two hundred eleven billion, one hundred twelve million, two hundred two thousand, three hundred eleven".