10134021321 has 16 divisors (see below), whose sum is σ = 15075670720. Its totient is φ = 6727976640.

The previous prime is 10134021311. The next prime is 10134021323. The reversal of 10134021321 is 12312043101.

10134021321 is a `hidden beast` number, since 1 + 0 + 1 + 340 + 2 + 1 + 321 = 666.

It is not a de Polignac number, because 10134021321 - 2⁷ = 10134021193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10134021294 and 10134021303.

It is not an unprimeable number, because it can be changed into a prime (10134021323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 772195 + ... + 785208.

It is an arithmetic number, because the mean of its divisors is an integer number (942229420).

Almost surely, 2^10134021321 is an apocalyptic number.

It is an amenable number.

10134021321 is a deficient number, since it is larger than the sum of its proper divisors (4941649399).

10134021321 is a wasteful number, since it uses less digits than its factorization.

10134021321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1557653 (or 1557647 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 10134021321 its reverse (12312043101), we get a palindrome (22446064422).

The spelling of 10134021321 in words is "ten billion, one hundred thirty-four million, twenty-one thousand, three hundred twenty-one".