21200133303313 has 32 divisors (see below), whose sum is σ = 22952917177344. Its totient is φ = 19530707055552.

The previous prime is 21200133303259. The next prime is 21200133303341. The reversal of 21200133303313 is 31330333100212.

It is not a de Polignac number, because 21200133303313 - 2⁹ = 21200133302801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21200133363313) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42684595 + ... + 43178407.

It is an arithmetic number, because the mean of its divisors is an integer number (717278661792).

Almost surely, 2^{21200133303313} is an apocalyptic number.

21200133303313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21200133303313 is a deficient number, since it is larger than the sum of its proper divisors (1752783874031).

21200133303313 is a wasteful number, since it uses less digits than its factorization.

21200133303313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494485.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 21200133303313 its reverse (31330333100212), we get a palindrome (52530466403525).

The spelling of 21200133303313 in words is "twenty-one trillion, two hundred billion, one hundred thirty-three million, three hundred three thousand, three hundred thirteen".