221313031103 has 2 divisors, whose sum is σ = 221313031104. Its totient is φ = 221313031102.

The previous prime is 221313031033. The next prime is 221313031109. The reversal of 221313031103 is 301130313122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221313031103 - 2³⁶ = 152593554367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221313031109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110656515551 + 110656515552.

It is an arithmetic number, because the mean of its divisors is an integer number (110656515552).

Almost surely, 2^221313031103 is an apocalyptic number.

221313031103 is a deficient number, since it is larger than the sum of its proper divisors (1).

221313031103 is an equidigital number, since it uses as much as digits as its factorization.

221313031103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 221313031103 its reverse (301130313122), we get a palindrome (522443344225).

The spelling of 221313031103 in words is "two hundred twenty-one billion, three hundred thirteen million, thirty-one thousand, one hundred three".