211331103 has 8 divisors (see below), whose sum is σ = 281876400. Its totient is φ = 140836608.

The previous prime is 211331093. The next prime is 211331117. The reversal of 211331103 is 301133112.

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

It is not a de Polignac number, because 211331103 - 2¹² = 211327007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211331143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1608 + ... + 20621.

It is an arithmetic number, because the mean of its divisors is an integer number (35234550).

Almost surely, 2^211331103 is an apocalyptic number.

211331103 is a deficient number, since it is larger than the sum of its proper divisors (70545297).

211331103 is a wasteful number, since it uses less digits than its factorization.

211331103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25401.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 211331103 is about 14537.2316140316. The cubic root of 211331103 is about 595.6454197300.

Adding to 211331103 its reverse (301133112), we get a palindrome (512464215).

The spelling of 211331103 in words is "two hundred eleven million, three hundred thirty-one thousand, one hundred three".