10000001321 has 8 divisors (see below), whose sum is σ = 10537222080. Its totient is φ = 9463871088.

The previous prime is 10000001251. The next prime is 10000001371. The reversal of 10000001321 is 12310000001.

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 10000001321 - 2¹⁴ = 9999984937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10000001299 and 10000001308.

It is not an unprimeable number, because it can be changed into a prime (10000001371) 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, 253766 + ... + 290511.

It is an arithmetic number, because the mean of its divisors is an integer number (1317152760).

Almost surely, 2^10000001321 is an apocalyptic number.

It is an amenable number.

10000001321 is a deficient number, since it is larger than the sum of its proper divisors (537220759).

10000001321 is an equidigital number, since it uses as much as digits as its factorization.

10000001321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545263.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 10000001321 its reverse (12310000001), we get a palindrome (22310001322).

The spelling of 10000001321 in words is "ten billion, one thousand, three hundred twenty-one".