211404342303 has 144 divisors (see below), whose sum is σ = 407045363712. Its totient is φ = 102604320000.

The previous prime is 211404342269. The next prime is 211404342349. The reversal of 211404342303 is 303243404112.

211404342303 is a `hidden beast` number, since 2 + 1 + 14 + 0 + 4 + 342 + 303 = 666.

It is not a de Polignac number, because 211404342303 - 2⁹ = 211404341791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211404302303) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 18061353 + ... + 18073053.

Almost surely, 2^211404342303 is an apocalyptic number.

211404342303 is a deficient number, since it is larger than the sum of its proper divisors (195641021409).

211404342303 is a wasteful number, since it uses less digits than its factorization.

211404342303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11814 (or 11782 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 211404342303 its reverse (303243404112), we get a palindrome (514647746415).

The spelling of 211404342303 in words is "two hundred eleven billion, four hundred four million, three hundred forty-two thousand, three hundred three".