11021321320011 has 24 divisors (see below), whose sum is σ = 16468860311280. Its totient is φ = 7094089388736.

The previous prime is 11021321320001. The next prime is 11021321320033. The reversal of 11021321320011 is 11002312312011.

11021321320011 is a `hidden beast` number, since 1 + 1 + 0 + 21 + 321 + 320 + 0 + 1 + 1 = 666.

It is not a de Polignac number, because 11021321320011 - 2²³ = 11021312931403 is a prime.

It is a super-2 number, since 2×11021321320011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11021321320001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23069020 + ... + 23541926.

It is an arithmetic number, because the mean of its divisors is an integer number (686202512970).

Almost surely, 2^{11021321320011} is an apocalyptic number.

11021321320011 is a deficient number, since it is larger than the sum of its proper divisors (5447538991269).

11021321320011 is a wasteful number, since it uses less digits than its factorization.

11021321320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562235 (or 562232 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11021321320011 its reverse (11002312312011), we get a palindrome (22023633632022).

The spelling of 11021321320011 in words is "eleven trillion, twenty-one billion, three hundred twenty-one million, three hundred twenty thousand, eleven".