10031320012 has 24 divisors (see below), whose sum is σ = 20073747456. Its totient is φ = 4296757008.

The previous prime is 10031320001. The next prime is 10031320021. The reversal of 10031320012 is 21002313001.

It is a junction number, because it is equal to n+sod(n) for n = 10031319974 and 10031320001.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 47218 + ... + 149305.

It is an arithmetic number, because the mean of its divisors is an integer number (836406144).

Almost surely, 2^10031320012 is an apocalyptic number.

It is an amenable number.

10031320012 is an abundant number, since it is smaller than the sum of its proper divisors (10042427444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10031320012 is a wasteful number, since it uses less digits than its factorization.

10031320012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198357 (or 198355 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 10031320012 its reverse (21002313001), we get a palindrome (31033633013).

The spelling of 10031320012 in words is "ten billion, thirty-one million, three hundred twenty thousand, twelve".