1103303020221 has 24 divisors (see below), whose sum is σ = 1654463690880. Its totient is φ = 734743446912.

The previous prime is 1103303020207. The next prime is 1103303020231. The reversal of 1103303020221 is 1220203033011.

1103303020221 is a `hidden beast` number, since 1 + 10 + 330 + 302 + 0 + 2 + 21 = 666.

It is not a de Polignac number, because 1103303020221 - 2¹³ = 1103303012029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1103303020194 and 1103303020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103303020231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2217925 + ... + 2669418.

It is an arithmetic number, because the mean of its divisors is an integer number (68935987120).

Almost surely, 2^{1103303020221} is an apocalyptic number.

It is an amenable number.

1103303020221 is a deficient number, since it is larger than the sum of its proper divisors (551160670659).

1103303020221 is an frugal number, since it uses more digits than its factorization.

1103303020221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888287 (or 4888275 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1103303020221 its reverse (1220203033011), we get a palindrome (2323506053232).

The spelling of 1103303020221 in words is "one trillion, one hundred three billion, three hundred three million, twenty thousand, two hundred twenty-one".