21200303013 has 16 divisors (see below), whose sum is σ = 28676617920. Its totient is φ = 13930160384.

The previous prime is 21200302993. The next prime is 21200303017. The reversal of 21200303013 is 31030300212.

It is a cyclic number.

It is not a de Polignac number, because 21200303013 - 2¹⁰ = 21200301989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21200302983 and 21200303001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21200303017) 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, 114006 + ... + 235367.

It is an arithmetic number, because the mean of its divisors is an integer number (1792288620).

Almost surely, 2^21200303013 is an apocalyptic number.

It is an amenable number.

21200303013 is a deficient number, since it is larger than the sum of its proper divisors (7476314907).

21200303013 is a wasteful number, since it uses less digits than its factorization.

21200303013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349668.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 21200303013 its reverse (31030300212), we get a palindrome (52230603225).

The spelling of 21200303013 in words is "twenty-one billion, two hundred million, three hundred three thousand, thirteen".