211443231103 has 8 divisors (see below), whose sum is σ = 237608447328. Its totient is φ = 186692350944.

The previous prime is 211443231047. The next prime is 211443231137. The reversal of 211443231103 is 301132344112.

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 211443231103 - 2¹³ = 211443222911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211443231143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 353583700 + ... + 353584297.

It is an arithmetic number, because the mean of its divisors is an integer number (29701055916).

Almost surely, 2^211443231103 is an apocalyptic number.

211443231103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

211443231103 is a deficient number, since it is larger than the sum of its proper divisors (26165216225).

211443231103 is a wasteful number, since it uses less digits than its factorization.

211443231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707168033.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 211443231103 its reverse (301132344112), we get a palindrome (512575575215).

The spelling of 211443231103 in words is "two hundred eleven billion, four hundred forty-three million, two hundred thirty-one thousand, one hundred three".