1103220134021 has 4 divisors (see below), whose sum is σ = 1103573620044. Its totient is φ = 1102866648000.

The previous prime is 1103220134011. The next prime is 1103220134033. The reversal of 1103220134021 is 1204310223011.

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 457366811521 + 645853322500 = 676289^2 + 803650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1103220134021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1103220133984 and 1103220134002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103220134011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176738330 + ... + 176744571.

It is an arithmetic number, because the mean of its divisors is an integer number (275893405011).

Almost surely, 2^{1103220134021} is an apocalyptic number.

It is an amenable number.

1103220134021 is a deficient number, since it is larger than the sum of its proper divisors (353486023).

1103220134021 is an equidigital number, since it uses as much as digits as its factorization.

1103220134021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353486022.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1103220134021 its reverse (1204310223011), we get a palindrome (2307530357032).

The spelling of 1103220134021 in words is "one trillion, one hundred three billion, two hundred twenty million, one hundred thirty-four thousand, twenty-one".