10521324345121 has 2 divisors, whose sum is σ = 10521324345122. Its totient is φ = 10521324345120.

The previous prime is 10521324345101. The next prime is 10521324345149. The reversal of 10521324345121 is 12154342312501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10323619615521 + 197704729600 = 3213039^2 + 444640^2 .

It is a cyclic number.

It is not a de Polignac number, because 10521324345121 - 2¹¹ = 10521324343073 is a prime.

It is a super-2 number, since 2×10521324345121² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10521324345101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5260662172560 + 5260662172561.

It is an arithmetic number, because the mean of its divisors is an integer number (5260662172561).

Almost surely, 2^{10521324345121} is an apocalyptic number.

It is an amenable number.

10521324345121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10521324345121 is an equidigital number, since it uses as much as digits as its factorization.

10521324345121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 10521324345121 its reverse (12154342312501), we get a palindrome (22675666657622).

The spelling of 10521324345121 in words is "ten trillion, five hundred twenty-one billion, three hundred twenty-four million, three hundred forty-five thousand, one hundred twenty-one".