10310013221 has 4 divisors (see below), whose sum is σ = 10388715744. Its totient is φ = 10231310700.

The previous prime is 10310013199. The next prime is 10310013229. The reversal of 10310013221 is 12231001301.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10310013221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10310013196 and 10310013205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10310013229) 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, 39351065 + ... + 39351326.

It is an arithmetic number, because the mean of its divisors is an integer number (2597178936).

Almost surely, 2^10310013221 is an apocalyptic number.

It is an amenable number.

10310013221 is a deficient number, since it is larger than the sum of its proper divisors (78702523).

10310013221 is an equidigital number, since it uses as much as digits as its factorization.

10310013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78702522.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10310013221 its reverse (12231001301), we get a palindrome (22541014522).

The spelling of 10310013221 in words is "ten billion, three hundred ten million, thirteen thousand, two hundred twenty-one".