11101321 has 8 divisors (see below), whose sum is σ = 13840704. Its totient is φ = 8650320.

The previous prime is 11101303. The next prime is 11101331. The reversal of 11101321 is 12310111.

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

It is not a de Polignac number, because 11101321 - 2¹¹ = 11099273 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 11101298 and 11101307.

It is not an unprimeable number, because it can be changed into a prime (11101331) 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, 72010 + ... + 72163.

It is an arithmetic number, because the mean of its divisors is an integer number (1730088).

Almost surely, 2^11101321 is an apocalyptic number.

11101321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11101321 is a deficient number, since it is larger than the sum of its proper divisors (2739383).

11101321 is a wasteful number, since it uses less digits than its factorization.

11101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144191.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 11101321 is about 3331.8644930429. The cubic root of 11101321 is about 223.0787592062.

Adding to 11101321 its reverse (12310111), we get a palindrome (23411432).

The spelling of 11101321 in words is "eleven million, one hundred one thousand, three hundred twenty-one".