11002323121 has 8 divisors (see below), whose sum is σ = 11033447400. Its totient is φ = 10971244032.

The previous prime is 11002323089. The next prime is 11002323139. The reversal of 11002323121 is 12132320011.

It can be written as a sum of positive squares in 4 ways, for example, as 401561521 + 10600761600 = 20039^2 + 102960^2 .

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 11002323121 - 2⁵ = 11002323089 is a prime.

It is a super-2 number, since 2×11002323121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11002323095 and 11002323104.

It is not an unprimeable number, because it can be changed into a prime (11002323151) 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, 509655 + ... + 530803.

It is an arithmetic number, because the mean of its divisors is an integer number (1379180925).

Almost surely, 2^11002323121 is an apocalyptic number.

It is an amenable number.

11002323121 is a deficient number, since it is larger than the sum of its proper divisors (31124279).

11002323121 is an equidigital number, since it uses as much as digits as its factorization.

11002323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22595.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11002323121 its reverse (12132320011), we get a palindrome (23134643132).

The spelling of 11002323121 in words is "eleven billion, two million, three hundred twenty-three thousand, one hundred twenty-one".