10285510121 has 2 divisors, whose sum is σ = 10285510122. Its totient is φ = 10285510120.

The previous prime is 10285510049. The next prime is 10285510171. The reversal of 10285510121 is 12101558201.

10285510121 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., 9759266521 + 526243600 = 98789^2 + 22940^2 .

It is an emirp because it is prime and its reverse (12101558201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10285510121 - 2¹⁰ = 10285509097 is a prime.

It is not a weakly prime, because it can be changed into another prime (10285510171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5142755060 + 5142755061.

It is an arithmetic number, because the mean of its divisors is an integer number (5142755061).

Almost surely, 2^10285510121 is an apocalyptic number.

It is an amenable number.

10285510121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10285510121 is an equidigital number, since it uses as much as digits as its factorization.

10285510121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 800, while the sum is 26.

The spelling of 10285510121 in words is "ten billion, two hundred eighty-five million, five hundred ten thousand, one hundred twenty-one".