10310221321 has 4 divisors (see below), whose sum is σ = 10310890192. Its totient is φ = 10309552452.

The previous prime is 10310221309. The next prime is 10310221391. The reversal of 10310221321 is 12312201301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12312201301 = 887 ⋅13880723.

It is a cyclic number.

It is not a de Polignac number, because 10310221321 - 2²⁹ = 9773350409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10310221295 and 10310221304.

It is not an unprimeable number, because it can be changed into a prime (10310221301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 310755 + ... + 342328.

It is an arithmetic number, because the mean of its divisors is an integer number (2577722548).

Almost surely, 2^10310221321 is an apocalyptic number.

It is an amenable number.

10310221321 is a deficient number, since it is larger than the sum of its proper divisors (668871).

10310221321 is an equidigital number, since it uses as much as digits as its factorization.

10310221321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668870.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10310221321 its reverse (12312201301), we get a palindrome (22622422622).

The spelling of 10310221321 in words is "ten billion, three hundred ten million, two hundred twenty-one thousand, three hundred twenty-one".