10310003221 has 12 divisors (see below), whose sum is σ = 12116916588. Its totient is φ = 8746036992.

The previous prime is 10310003201. The next prime is 10310003261. The reversal of 10310003221 is 12230001301.

It can be written as a sum of positive squares in 2 ways, for example, as 4302048100 + 6007955121 = 65590^2 + 77511^2 .

It is not a de Polignac number, because 10310003221 - 2⁵ = 10310003189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10310003201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1079826 + ... + 1089331.

It is an arithmetic number, because the mean of its divisors is an integer number (1009743049).

Almost surely, 2^10310003221 is an apocalyptic number.

It is an amenable number.

10310003221 is a deficient number, since it is larger than the sum of its proper divisors (1806913367).

10310003221 is an equidigital number, since it uses as much as digits as its factorization.

10310003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2169268 (or 2169261 counting only the distinct ones).

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

Adding to 10310003221 its reverse (12230001301), we get a palindrome (22540004522).

The spelling of 10310003221 in words is "ten billion, three hundred ten million, three thousand, two hundred twenty-one".