2103111230221 has 2 divisors, whose sum is σ = 2103111230222. Its totient is φ = 2103111230220.

The previous prime is 2103111230201. The next prime is 2103111230239. The reversal of 2103111230221 is 1220321113012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1461654402121 + 641456828100 = 1208989^2 + 800910^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103111230221 - 2⁷ = 2103111230093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103111230201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051555615110 + 1051555615111.

It is an arithmetic number, because the mean of its divisors is an integer number (1051555615111).

Almost surely, 2^{2103111230221} is an apocalyptic number.

It is an amenable number.

2103111230221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103111230221 is an equidigital number, since it uses as much as digits as its factorization.

2103111230221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2103111230221 its reverse (1220321113012), we get a palindrome (3323432343233).

It can be divided in two parts, 2103111 and 230221, that added together give a palindrome (2333332).

The spelling of 2103111230221 in words is "two trillion, one hundred three billion, one hundred eleven million, two hundred thirty thousand, two hundred twenty-one".