11002021321123 has 16 divisors (see below), whose sum is σ = 12643653597120. Its totient is φ = 9377871465600.

The previous prime is 11002021321087. The next prime is 11002021321129. The reversal of 11002021321123 is 32112312020011.

It is a cyclic number.

It is not a de Polignac number, because 11002021321123 - 2¹⁷ = 11002021190051 is a prime.

It is a super-2 number, since 2×11002021321123² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11002021321123.

It is not an unprimeable number, because it can be changed into a prime (11002021321129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39824793 + ... + 40100101.

It is an arithmetic number, because the mean of its divisors is an integer number (790228349820).

Almost surely, 2^{11002021321123} is an apocalyptic number.

11002021321123 is a deficient number, since it is larger than the sum of its proper divisors (1641632275997).

11002021321123 is a wasteful number, since it uses less digits than its factorization.

11002021321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307038.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11002021321123 its reverse (32112312020011), we get a palindrome (43114333341134).

The spelling of 11002021321123 in words is "eleven trillion, two billion, twenty-one million, three hundred twenty-one thousand, one hundred twenty-three".