1103323221 has 64 divisors (see below), whose sum is σ = 2194698240. Its totient is φ = 529053120.

The previous prime is 1103323219. The next prime is 1103323223. The reversal of 1103323221 is 1223233011.

1103323221 is a `hidden beast` number, since 1 + 10 + 332 + 322 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1103323219) and next prime (1103323223).

It is not a de Polignac number, because 1103323221 - 2¹ = 1103323219 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1103323194 and 1103323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103323223) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6616 + ... + 47438.

It is an arithmetic number, because the mean of its divisors is an integer number (34292160).

Almost surely, 2^1103323221 is an apocalyptic number.

1103323221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1103323221 is a deficient number, since it is larger than the sum of its proper divisors (1091375019).

1103323221 is a wasteful number, since it uses less digits than its factorization.

1103323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40863 (or 40857 counting only the distinct ones).

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

The square root of 1103323221 is about 33216.3095632251. The cubic root of 1103323221 is about 1033.3186142776.

Adding to 1103323221 its reverse (1223233011), we get a palindrome (2326556232).

It can be divided in two parts, 11033232 and 21, that added together give a triangular number (11033253 = T₄₆₉₇).

The spelling of 1103323221 in words is "one billion, one hundred three million, three hundred twenty-three thousand, two hundred twenty-one".