11002321121 has 16 divisors (see below), whose sum is σ = 12238110720. Its totient is φ = 9806688720.

The previous prime is 11002321111. The next prime is 11002321123. The reversal of 11002321121 is 12112320011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11002321121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11002321096 and 11002321105.

It is not an unprimeable number, because it can be changed into a prime (11002321123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 226436 + ... + 270698.

It is an arithmetic number, because the mean of its divisors is an integer number (764881920).

Almost surely, 2^11002321121 is an apocalyptic number.

11002321121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11002321121 is a deficient number, since it is larger than the sum of its proper divisors (1235789599).

11002321121 is a wasteful number, since it uses less digits than its factorization.

11002321121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44716.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11002321121 its reverse (12112320011), we get a palindrome (23114641132).

The spelling of 11002321121 in words is "eleven billion, two million, three hundred twenty-one thousand, one hundred twenty-one".