21301000000013 has 16 divisors (see below), whose sum is σ = 21433190688000. Its totient is φ = 21168974471040.

The previous prime is 21301000000001. The next prime is 21301000000019. The reversal of 21301000000013 is 31000000010312.

It is a cyclic number.

It is not a de Polignac number, because 21301000000013 - 2⁸ = 21300999999757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21300999999940 and 21301000000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21301000000019) 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, 2987933033 + ... + 2987940161.

It is an arithmetic number, because the mean of its divisors is an integer number (1339574418000).

Almost surely, 2^{21301000000013} is an apocalyptic number.

It is an amenable number.

21301000000013 is a deficient number, since it is larger than the sum of its proper divisors (132190687987).

21301000000013 is a wasteful number, since it uses less digits than its factorization.

21301000000013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16172.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 21301000000013 its reverse (31000000010312), we get a palindrome (52301000010325).

The spelling of 21301000000013 in words is "twenty-one trillion, three hundred one billion, thirteen", and thus it is an aban number.