211403004354424 has 32 divisors (see below), whose sum is σ = 398458143270000. Its totient is φ = 105147564705792.

The previous prime is 211403004354403. The next prime is 211403004354461. The reversal of 211403004354424 is 424453400304112.

It is a happy number.

It is a super-2 number, since 2×211403004354424² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 21916027 + ... + 30051925.

Almost surely, 2^{211403004354424} is an apocalyptic number.

It is an amenable number.

211403004354424 is a deficient number, since it is larger than the sum of its proper divisors (187055138915576).

211403004354424 is a wasteful number, since it uses less digits than its factorization.

211403004354424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8152927 (or 8152923 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 211403004354424 its reverse (424453400304112), we get a palindrome (635856404658536).

The spelling of 211403004354424 in words is "two hundred eleven trillion, four hundred three billion, four million, three hundred fifty-four thousand, four hundred twenty-four".