203311311111211 has 8 divisors (see below), whose sum is σ = 208806432900480. Its totient is φ = 197816200979328.

The previous prime is 203311311111127. The next prime is 203311311111247. The reversal of 203311311111211 is 112111113113302.

It is a happy number.

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 203311311111211 - 2¹⁷ = 203311310980139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203311311111281) by changing a digit.

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, 41438310 + ... + 46084228.

It is an arithmetic number, because the mean of its divisors is an integer number (26100804112560).

Almost surely, 2^{203311311111211} is an apocalyptic number.

203311311111211 is a deficient number, since it is larger than the sum of its proper divisors (5495121789269).

203311311111211 is a wasteful number, since it uses less digits than its factorization.

203311311111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5828693.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 203311311111211 its reverse (112111113113302), we get a palindrome (315422424224513).

The spelling of 203311311111211 in words is "two hundred three trillion, three hundred eleven billion, three hundred eleven million, one hundred eleven thousand, two hundred eleven".