103003221 has 24 divisors (see below), whose sum is σ = 148417920. Its totient is φ = 63321856.

The previous prime is 103003217. The next prime is 103003231. The reversal of 103003221 is 122300301.

It is a happy number.

It is not a de Polignac number, because 103003221 - 2² = 103003217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103003197 and 103003206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103003211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142900 + ... + 143618.

It is an arithmetic number, because the mean of its divisors is an integer number (6184080).

Almost surely, 2^103003221 is an apocalyptic number.

It is an amenable number.

103003221 is a deficient number, since it is larger than the sum of its proper divisors (45414699).

103003221 is an equidigital number, since it uses as much as digits as its factorization.

103003221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 845 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 103003221 is about 10149.0502511319. The cubic root of 103003221 is about 468.7597009903.

Adding to 103003221 its reverse (122300301), we get a palindrome (225303522).

The spelling of 103003221 in words is "one hundred three million, three thousand, two hundred twenty-one".