211302342121303 has 4 divisors (see below), whose sum is σ = 211339135151968. Its totient is φ = 211265549090640.

The previous prime is 211302342121291. The next prime is 211302342121313. The reversal of 211302342121303 is 303121243203112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211302342121303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211302342121313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18396506718 + ... + 18396518203.

It is an arithmetic number, because the mean of its divisors is an integer number (52834783787992).

Almost surely, 2^{211302342121303} is an apocalyptic number.

211302342121303 is a deficient number, since it is larger than the sum of its proper divisors (36793030665).

211302342121303 is an equidigital number, since it uses as much as digits as its factorization.

211302342121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36793030664.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 211302342121303 its reverse (303121243203112), we get a palindrome (514423585324415).

The spelling of 211302342121303 in words is "two hundred eleven trillion, three hundred two billion, three hundred forty-two million, one hundred twenty-one thousand, three hundred three".