1003130221 has 2 divisors, whose sum is σ = 1003130222. Its totient is φ = 1003130220.

The previous prime is 1003130179. The next prime is 1003130239. The reversal of 1003130221 is 1220313001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 937033321 + 66096900 = 30611^2 + 8130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003130221 - 2⁹ = 1003129709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1003131221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501565110 + 501565111.

It is an arithmetic number, because the mean of its divisors is an integer number (501565111).

Almost surely, 2^1003130221 is an apocalyptic number.

It is an amenable number.

1003130221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003130221 is an equidigital number, since it uses as much as digits as its factorization.

1003130221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1003130221 is about 31672.2310707661. The cubic root of 1003130221 is about 1001.0423201911.

Adding to 1003130221 its reverse (1220313001), we get a palindrome (2223443222).

The spelling of 1003130221 in words is "one billion, three million, one hundred thirty thousand, two hundred twenty-one".