21321102000011 has 16 divisors (see below), whose sum is σ = 23307773407488. Its totient is φ = 19342537116000.

The previous prime is 21321102000007. The next prime is 21321102000061. The reversal of 21321102000011 is 11000020112312.

It is a cyclic number.

It is not a de Polignac number, because 21321102000011 - 2² = 21321102000007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21321102000011.

It is not an unprimeable number, because it can be changed into a prime (21321102000061) 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, 9215021 + ... + 11294193.

It is an arithmetic number, because the mean of its divisors is an integer number (1456735837968).

Almost surely, 2^{21321102000011} is an apocalyptic number.

21321102000011 is a deficient number, since it is larger than the sum of its proper divisors (1986671407477).

21321102000011 is a wasteful number, since it uses less digits than its factorization.

21321102000011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081122.

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

Adding to 21321102000011 its reverse (11000020112312), we get a palindrome (32321122112323).

The spelling of 21321102000011 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred two million, eleven", and thus it is an aban number.