1103123302321 has 4 divisors (see below), whose sum is σ = 1113243699700. Its totient is φ = 1093002904944.

The previous prime is 1103123302301. The next prime is 1103123302331. The reversal of 1103123302321 is 1232033213011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 895701352225 + 207421950096 = 946415^2 + 455436^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103123302321 - 2²⁵ = 1103089747889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103123302292 and 1103123302301.

It is not an unprimeable number, because it can be changed into a prime (1103123302301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5060198526 + ... + 5060198743.

It is an arithmetic number, because the mean of its divisors is an integer number (278310924925).

Almost surely, 2^{1103123302321} is an apocalyptic number.

It is an amenable number.

1103123302321 is a deficient number, since it is larger than the sum of its proper divisors (10120397379).

1103123302321 is a wasteful number, since it uses less digits than its factorization.

1103123302321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10120397378.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1103123302321 its reverse (1232033213011), we get a palindrome (2335156515332).

The spelling of 1103123302321 in words is "one trillion, one hundred three billion, one hundred twenty-three million, three hundred two thousand, three hundred twenty-one".