211331010103 has 4 divisors (see below), whose sum is σ = 211687386768. Its totient is φ = 210974633440.

The previous prime is 211331010091. The next prime is 211331010169. The reversal of 211331010103 is 301010133112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211331010103 - 2¹³ = 211331001911 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 (211331010173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178187443 + ... + 178188628.

It is an arithmetic number, because the mean of its divisors is an integer number (52921846692).

Almost surely, 2^211331010103 is an apocalyptic number.

211331010103 is a deficient number, since it is larger than the sum of its proper divisors (356376665).

211331010103 is an equidigital number, since it uses as much as digits as its factorization.

211331010103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356376664.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 211331010103 its reverse (301010133112), we get a palindrome (512341143215).

The spelling of 211331010103 in words is "two hundred eleven billion, three hundred thirty-one million, ten thousand, one hundred three".