211304402143 has 2 divisors, whose sum is σ = 211304402144. Its totient is φ = 211304402142.

The previous prime is 211304402081. The next prime is 211304402159. The reversal of 211304402143 is 341204403112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211304402143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211304402443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105652201071 + 105652201072.

It is an arithmetic number, because the mean of its divisors is an integer number (105652201072).

Almost surely, 2^211304402143 is an apocalyptic number.

211304402143 is a deficient number, since it is larger than the sum of its proper divisors (1).

211304402143 is an equidigital number, since it uses as much as digits as its factorization.

211304402143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 211304402143 its reverse (341204403112), we get a palindrome (552508805255).

The spelling of 211304402143 in words is "two hundred eleven billion, three hundred four million, four hundred two thousand, one hundred forty-three".