12310010131021 has 4 divisors (see below), whose sum is σ = 12315770549692. Its totient is φ = 12304249712352.

The previous prime is 12310010130989. The next prime is 12310010131073. The reversal of 12310010131021 is 12013101001321.

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 4158585426121 + 8151424704900 = 2039261^2 + 2855070^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310010131021 - 2⁵ = 12310010130989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12310010130986 and 12310010131004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310010131421) 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 in 3 ways as a sum of consecutive naturals, for example, 2880206130 + ... + 2880210403.

It is an arithmetic number, because the mean of its divisors is an integer number (3078942637423).

Almost surely, 2^{12310010131021} is an apocalyptic number.

It is an amenable number.

12310010131021 is a deficient number, since it is larger than the sum of its proper divisors (5760418671).

12310010131021 is an equidigital number, since it uses as much as digits as its factorization.

12310010131021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5760418670.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 12310010131021 its reverse (12013101001321), we get a palindrome (24323111132342).

The spelling of 12310010131021 in words is "twelve trillion, three hundred ten billion, ten million, one hundred thirty-one thousand, twenty-one".