21041543340310 has 16 divisors (see below), whose sum is σ = 39868187382000. Its totient is φ = 7973637476256.

The previous prime is 21041543340271. The next prime is 21041543340317. The reversal of 21041543340310 is 1304334514012.

It is a super-2 number, since 2×21041543340310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21041543340317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55372482285 + ... + 55372482664.

It is an arithmetic number, because the mean of its divisors is an integer number (2491761711375).

Almost surely, 2^{21041543340310} is an apocalyptic number.

21041543340310 is a deficient number, since it is larger than the sum of its proper divisors (18826644041690).

21041543340310 is a wasteful number, since it uses less digits than its factorization.

21041543340310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110744964975.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 21041543340310 its reverse (1304334514012), we get a palindrome (22345877854322).

The spelling of 21041543340310 in words is "twenty-one trillion, forty-one billion, five hundred forty-three million, three hundred forty thousand, three hundred ten".