1103032313221 has 2 divisors, whose sum is σ = 1103032313222. Its totient is φ = 1103032313220.

The previous prime is 1103032313171. The next prime is 1103032313321. The reversal of 1103032313221 is 1223132303011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 706673928321 + 396358384900 = 840639^2 + 629570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103032313221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103032313192 and 1103032313201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103032313021) 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, 551516156610 + 551516156611.

It is an arithmetic number, because the mean of its divisors is an integer number (551516156611).

Almost surely, 2^{1103032313221} is an apocalyptic number.

It is an amenable number.

1103032313221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103032313221 is an equidigital number, since it uses as much as digits as its factorization.

1103032313221 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 22.

Adding to 1103032313221 its reverse (1223132303011), we get a palindrome (2326164616232).

The spelling of 1103032313221 in words is "one trillion, one hundred three billion, thirty-two million, three hundred thirteen thousand, two hundred twenty-one".