11321003111 has 8 divisors (see below), whose sum is σ = 13000195200. Its totient is φ = 9750146040.

The previous prime is 11321003081. The next prime is 11321003117. The reversal of 11321003111 is 11130012311.

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 11321003111 - 2⁶ = 11321003047 is a prime.

It is a super-2 number, since 2×11321003111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321003117) 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, 27083531 + ... + 27083948.

It is an arithmetic number, because the mean of its divisors is an integer number (1625024400).

Almost surely, 2^11321003111 is an apocalyptic number.

11321003111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11321003111 is a deficient number, since it is larger than the sum of its proper divisors (1679192089).

11321003111 is a wasteful number, since it uses less digits than its factorization.

11321003111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54167509.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11321003111 its reverse (11130012311), we get a palindrome (22451015422).

The spelling of 11321003111 in words is "eleven billion, three hundred twenty-one million, three thousand, one hundred eleven".