21043030331301 has 96 divisors (see below), whose sum is σ = 31491812352000. Its totient is φ = 12485652854400.

The previous prime is 21043030331299. The next prime is 21043030331317. The reversal of 21043030331301 is 10313303034012.

It is a happy number.

It is not a de Polignac number, because 21043030331301 - 2¹ = 21043030331299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21043030331321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9201148980 + ... + 9201151266.

It is an arithmetic number, because the mean of its divisors is an integer number (328039712000).

Almost surely, 2^{21043030331301} is an apocalyptic number.

It is an amenable number.

21043030331301 is a deficient number, since it is larger than the sum of its proper divisors (10448782020699).

21043030331301 is a wasteful number, since it uses less digits than its factorization.

21043030331301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3951 (or 3940 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21043030331301 its reverse (10313303034012), we get a palindrome (31356333365313).

The spelling of 21043030331301 in words is "twenty-one trillion, forty-three billion, thirty million, three hundred thirty-one thousand, three hundred one".