1103301203261 has 2 divisors, whose sum is σ = 1103301203262. Its totient is φ = 1103301203260.

The previous prime is 1103301203203. The next prime is 1103301203297. The reversal of 1103301203261 is 1623021033011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 687231052036 + 416070151225 = 828994^2 + 645035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103301203261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103301203561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551650601630 + 551650601631.

It is an arithmetic number, because the mean of its divisors is an integer number (551650601631).

Almost surely, 2^{1103301203261} is an apocalyptic number.

It is an amenable number.

1103301203261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103301203261 is an equidigital number, since it uses as much as digits as its factorization.

1103301203261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1103301203261 its reverse (1623021033011), we get a palindrome (2726322236272).

The spelling of 1103301203261 in words is "one trillion, one hundred three billion, three hundred one million, two hundred three thousand, two hundred sixty-one".