10351261321 has 2 divisors, whose sum is σ = 10351261322. Its totient is φ = 10351261320.

The previous prime is 10351261307. The next prime is 10351261369. The reversal of 10351261321 is 12316215301.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9893087296 + 458174025 = 99464^2 + 21405^2 .

It is a cyclic number.

It is not a de Polignac number, because 10351261321 - 2⁵ = 10351261289 is a prime.

It is a super-2 number, since 2×10351261321² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10351261381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5175630660 + 5175630661.

It is an arithmetic number, because the mean of its divisors is an integer number (5175630661).

Almost surely, 2^10351261321 is an apocalyptic number.

It is an amenable number.

10351261321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10351261321 is an equidigital number, since it uses as much as digits as its factorization.

10351261321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 25.

Adding to 10351261321 its reverse (12316215301), we get a palindrome (22667476622).

The spelling of 10351261321 in words is "ten billion, three hundred fifty-one million, two hundred sixty-one thousand, three hundred twenty-one".