21133301013 has 12 divisors (see below), whose sum is σ = 33300959328. Its totient is φ = 12808061160.

The previous prime is 21133301003. The next prime is 21133301053. The reversal of 21133301013 is 31010333112.

It is a happy number.

It is not a de Polignac number, because 21133301013 - 2¹⁰ = 21133299989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133301003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106733745 + ... + 106733942.

It is an arithmetic number, because the mean of its divisors is an integer number (2775079944).

Almost surely, 2^21133301013 is an apocalyptic number.

It is an amenable number.

21133301013 is a deficient number, since it is larger than the sum of its proper divisors (12167658315).

21133301013 is a wasteful number, since it uses less digits than its factorization.

21133301013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213467704 (or 213467701 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 21133301013 its reverse (31010333112), we get a palindrome (52143634125).

The spelling of 21133301013 in words is "twenty-one billion, one hundred thirty-three million, three hundred one thousand, thirteen".