11121113321 has 8 divisors (see below), whose sum is σ = 11481381888. Its totient is φ = 10760940000.

The previous prime is 11121113309. The next prime is 11121113327. The reversal of 11121113321 is 12331112111.

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 11121113321 - 2¹⁴ = 11121096937 is a prime.

It is a super-2 number, since 2×11121113321² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121113321.

It is not an unprimeable number, because it can be changed into a prime (11121113327) 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, 272021 + ... + 310221.

It is an arithmetic number, because the mean of its divisors is an integer number (1435172736).

Almost surely, 2^11121113321 is an apocalyptic number.

It is an amenable number.

11121113321 is a deficient number, since it is larger than the sum of its proper divisors (360268567).

11121113321 is an equidigital number, since it uses as much as digits as its factorization.

11121113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47623.

The product of its digits is 36, while the sum is 17.

Adding to 11121113321 its reverse (12331112111), we get a palindrome (23452225432).

The spelling of 11121113321 in words is "eleven billion, one hundred twenty-one million, one hundred thirteen thousand, three hundred twenty-one".