10013121321 has 8 divisors (see below), whose sum is σ = 15258089664. Its totient is φ = 5721783600.

The previous prime is 10013121299. The next prime is 10013121331. The reversal of 10013121321 is 12312131001.

It is a happy number.

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

It is not a de Polignac number, because 10013121321 - 2⁵ = 10013121289 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10013121321.

It is not an unprimeable number, because it can be changed into a prime (10013121331) 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, 238407630 + ... + 238407671.

It is an arithmetic number, because the mean of its divisors is an integer number (1907261208).

Almost surely, 2^10013121321 is an apocalyptic number.

It is an amenable number.

10013121321 is a deficient number, since it is larger than the sum of its proper divisors (5244968343).

10013121321 is an equidigital number, since it uses as much as digits as its factorization.

10013121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 476815311.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10013121321 its reverse (12312131001), we get a palindrome (22325252322).

The spelling of 10013121321 in words is "ten billion, thirteen million, one hundred twenty-one thousand, three hundred twenty-one".