11111013321 has 8 divisors (see below), whose sum is σ = 14820258240. Its totient is φ = 7404555312.

The previous prime is 11111013311. The next prime is 11111013367. The reversal of 11111013321 is 12331011111.

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

It is not a de Polignac number, because 11111013321 - 2⁶ = 11111013257 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11111013321.

It is not an unprimeable number, because it can be changed into a prime (11111013311) 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, 687406 + ... + 703383.

It is an arithmetic number, because the mean of its divisors is an integer number (1852532280).

Almost surely, 2^11111013321 is an apocalyptic number.

It is an amenable number.

11111013321 is a deficient number, since it is larger than the sum of its proper divisors (3709244919).

11111013321 is a wasteful number, since it uses less digits than its factorization.

11111013321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393455.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11111013321 its reverse (12331011111), we get a palindrome (23442024432).

The spelling of 11111013321 in words is "eleven billion, one hundred eleven million, thirteen thousand, three hundred twenty-one".