10120313021 has 12 divisors (see below), whose sum is σ = 12524209632. Its totient is φ = 8007279696.

The previous prime is 10120313017. The next prime is 10120313039. The reversal of 10120313021 is 12031302101.

10120313021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10120313021 - 2² = 10120313017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10120312987 and 10120313005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10120313051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4276211 + ... + 4278576.

It is an arithmetic number, because the mean of its divisors is an integer number (1043684136).

Almost surely, 2^10120313021 is an apocalyptic number.

It is an amenable number.

10120313021 is a deficient number, since it is larger than the sum of its proper divisors (2403896611).

10120313021 is an equidigital number, since it uses as much as digits as its factorization.

10120313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8554820 (or 8554807 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10120313021 its reverse (12031302101), we get a palindrome (22151615122).

The spelling of 10120313021 in words is "ten billion, one hundred twenty million, three hundred thirteen thousand, twenty-one".