21034502540041 has 8 divisors (see below), whose sum is σ = 21286474223400. Its totient is φ = 20782878167040.

The previous prime is 21034502539993. The next prime is 21034502540057. The reversal of 21034502540041 is 14004520543012.

It can be written as a sum of positive squares in 4 ways, for example, as 333049026816 + 20701453513225 = 577104^2 + 4549885^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21034502540041 - 2⁹ = 21034502539529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21034502539985 and 21034502540012.

It is not an unprimeable number, because it can be changed into a prime (21034502540641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86705736 + ... + 86947993.

It is an arithmetic number, because the mean of its divisors is an integer number (2660809277925).

Almost surely, 2^{21034502540041} is an apocalyptic number.

It is an amenable number.

21034502540041 is a deficient number, since it is larger than the sum of its proper divisors (251971683359).

21034502540041 is a wasteful number, since it uses less digits than its factorization.

21034502540041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173655179.

The product of its (nonzero) digits is 19200, while the sum is 31.

The spelling of 21034502540041 in words is "twenty-one trillion, thirty-four billion, five hundred two million, five hundred forty thousand, forty-one".