10210312011121 has 4 divisors (see below), whose sum is σ = 10210326076132. Its totient is φ = 10210297946112.

The previous prime is 10210312011103. The next prime is 10210312011131. The reversal of 10210312011121 is 12111021301201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8482283454096 + 1728028557025 = 2912436^2 + 1314545^2 .

It is a cyclic number.

It is not a de Polignac number, because 10210312011121 - 2⁹ = 10210312010609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10210312011095 and 10210312011104.

It is not an unprimeable number, because it can be changed into a prime (10210312011131) 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 in 3 ways as a sum of consecutive naturals, for example, 5880720 + ... + 7416433.

It is an arithmetic number, because the mean of its divisors is an integer number (2552581519033).

Almost surely, 2^{10210312011121} is an apocalyptic number.

It is an amenable number.

10210312011121 is a deficient number, since it is larger than the sum of its proper divisors (14065011).

10210312011121 is an equidigital number, since it uses as much as digits as its factorization.

10210312011121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14065010.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 10210312011121 its reverse (12111021301201), we get a palindrome (22321333312322).

The spelling of 10210312011121 in words is "ten trillion, two hundred ten billion, three hundred twelve million, eleven thousand, one hundred twenty-one".