10312123130021 has 8 divisors (see below), whose sum is σ = 10320416483520. Its totient is φ = 10303830307008.

The previous prime is 10312123129999. The next prime is 10312123130077. The reversal of 10312123130021 is 12003132121301.

It is a happy number.

10312123130021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10312123130021 - 2¹⁴ = 10312123113637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10312123129975 and 10312123130002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10312123130081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44864030 + ... + 45093296.

It is an arithmetic number, because the mean of its divisors is an integer number (1290052060440).

Almost surely, 2^{10312123130021} is an apocalyptic number.

It is an amenable number.

10312123130021 is a deficient number, since it is larger than the sum of its proper divisors (8293353499).

10312123130021 is a wasteful number, since it uses less digits than its factorization.

10312123130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265243.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 10312123130021 its reverse (12003132121301), we get a palindrome (22315255251322).

The spelling of 10312123130021 in words is "ten trillion, three hundred twelve billion, one hundred twenty-three million, one hundred thirty thousand, twenty-one".