211403121303 has 8 divisors (see below), whose sum is σ = 307495449216. Its totient is φ = 128123103800.

The previous prime is 211403121299. The next prime is 211403121317. The reversal of 211403121303 is 303121304112.

211403121303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211403121303 - 2² = 211403121299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211403121303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211403121343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3203077563 + ... + 3203077628.

It is an arithmetic number, because the mean of its divisors is an integer number (38436931152).

Almost surely, 2^211403121303 is an apocalyptic number.

211403121303 is a deficient number, since it is larger than the sum of its proper divisors (96092327913).

211403121303 is a wasteful number, since it uses less digits than its factorization.

211403121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6406155205.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 211403121303 its reverse (303121304112), we get a palindrome (514524425415).

The spelling of 211403121303 in words is "two hundred eleven billion, four hundred three million, one hundred twenty-one thousand, three hundred three".