10313564221 has 2 divisors, whose sum is σ = 10313564222. Its totient is φ = 10313564220.

The previous prime is 10313564201. The next prime is 10313564231. The reversal of 10313564221 is 12246531301.

10313564221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10275876900 + 37687321 = 101370^2 + 6139^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10313564221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10313564221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10313564201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5156782110 + 5156782111.

It is an arithmetic number, because the mean of its divisors is an integer number (5156782111).

Almost surely, 2^10313564221 is an apocalyptic number.

It is an amenable number.

10313564221 is a deficient number, since it is larger than the sum of its proper divisors (1).

10313564221 is an equidigital number, since it uses as much as digits as its factorization.

10313564221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 10313564221 in words is "ten billion, three hundred thirteen million, five hundred sixty-four thousand, two hundred twenty-one".