211201103231 has 4 divisors (see below), whose sum is σ = 211202182464. Its totient is φ = 211200024000.

The previous prime is 211201103207. The next prime is 211201103237. The reversal of 211201103231 is 132301102112.

211201103231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 211201103231 - 2¹⁰ = 211201102207 is a prime.

It is a super-2 number, since 2×211201103231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211201103237) 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 3 ways as a sum of consecutive naturals, for example, 154415 + ... + 668016.

It is an arithmetic number, because the mean of its divisors is an integer number (52800545616).

Almost surely, 2^211201103231 is an apocalyptic number.

211201103231 is a deficient number, since it is larger than the sum of its proper divisors (1079233).

211201103231 is an equidigital number, since it uses as much as digits as its factorization.

211201103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079232.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211201103231 its reverse (132301102112), we get a palindrome (343502205343).

It can be divided in two parts, 211201 and 103231, that added together give a cube (314432 = 68³).

The spelling of 211201103231 in words is "two hundred eleven billion, two hundred one million, one hundred three thousand, two hundred thirty-one".