21013013310011 has 8 divisors (see below), whose sum is σ = 21068090233344. Its totient is φ = 20957937495040.

The previous prime is 21013013309963. The next prime is 21013013310097. The reversal of 21013013310011 is 11001331031012.

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 21013013310011 - 2³⁰ = 21011939568187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21013013310511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49279355 + ... + 49703931.

It is an arithmetic number, because the mean of its divisors is an integer number (2633511279168).

Almost surely, 2^{21013013310011} is an apocalyptic number.

21013013310011 is a deficient number, since it is larger than the sum of its proper divisors (55076923333).

21013013310011 is a wasteful number, since it uses less digits than its factorization.

21013013310011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554181.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 21013013310011 its reverse (11001331031012), we get a palindrome (32014344341023).

The spelling of 21013013310011 in words is "twenty-one trillion, thirteen billion, thirteen million, three hundred ten thousand, eleven".