21013202002013 has 16 divisors (see below), whose sum is σ = 22737147685056. Its totient is φ = 19304738256000.

The previous prime is 21013202001989. The next prime is 21013202002049. The reversal of 21013202002013 is 31020020231012.

It is a cyclic number.

It is not a de Polignac number, because 21013202002013 - 2²⁸ = 21012933566557 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21013202001982 and 21013202002000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21013202002213) 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, 1801145 + ... + 6728337.

It is an arithmetic number, because the mean of its divisors is an integer number (1421071730316).

Almost surely, 2^{21013202002013} is an apocalyptic number.

It is an amenable number.

21013202002013 is a deficient number, since it is larger than the sum of its proper divisors (1723945683043).

21013202002013 is a wasteful number, since it uses less digits than its factorization.

21013202002013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4928764.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21013202002013 its reverse (31020020231012), we get a palindrome (52033222233025).

The spelling of 21013202002013 in words is "twenty-one trillion, thirteen billion, two hundred two million, two thousand, thirteen".