211142420323 has 2 divisors, whose sum is σ = 211142420324. Its totient is φ = 211142420322.

The previous prime is 211142420311. The next prime is 211142420339. The reversal of 211142420323 is 323024241112.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211142420323 is a prime.

It is a super-3 number, since 3×211142420323³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (211142420023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105571210161 + 105571210162.

It is an arithmetic number, because the mean of its divisors is an integer number (105571210162).

Almost surely, 2^211142420323 is an apocalyptic number.

211142420323 is a deficient number, since it is larger than the sum of its proper divisors (1).

211142420323 is an equidigital number, since it uses as much as digits as its factorization.

211142420323 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 211142420323 its reverse (323024241112), we get a palindrome (534166661435).

The spelling of 211142420323 in words is "two hundred eleven billion, one hundred forty-two million, four hundred twenty thousand, three hundred twenty-three".