213103131103 has 2 divisors, whose sum is σ = 213103131104. Its totient is φ = 213103131102.

The previous prime is 213103131097. The next prime is 213103131119. The reversal of 213103131103 is 301131301312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213103131103 - 2¹⁷ = 213103000031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213103131173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106551565551 + 106551565552.

It is an arithmetic number, because the mean of its divisors is an integer number (106551565552).

Almost surely, 2^213103131103 is an apocalyptic number.

213103131103 is a deficient number, since it is larger than the sum of its proper divisors (1).

213103131103 is an equidigital number, since it uses as much as digits as its factorization.

213103131103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 213103131103 its reverse (301131301312), we get a palindrome (514234432415).

The spelling of 213103131103 in words is "two hundred thirteen billion, one hundred three million, one hundred thirty-one thousand, one hundred three".