10001111321 has 8 divisors (see below), whose sum is σ = 10442450880. Its totient is φ = 9560314192.

The previous prime is 10001111297. The next prime is 10001111387. The reversal of 10001111321 is 12311110001.

It is a happy number.

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 10001111321 - 2¹⁴ = 10001094937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10001111521) 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, 97691 + ... + 171888.

It is an arithmetic number, because the mean of its divisors is an integer number (1305306360).

Almost surely, 2^10001111321 is an apocalyptic number.

It is an amenable number.

10001111321 is a deficient number, since it is larger than the sum of its proper divisors (441339559).

10001111321 is a wasteful number, since it uses less digits than its factorization.

10001111321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271215.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 10001111321 its reverse (12311110001), we get a palindrome (22312221322).

The spelling of 10001111321 in words is "ten billion, one million, one hundred eleven thousand, three hundred twenty-one".