21003013410041 has 4 divisors (see below), whose sum is σ = 22618629826212. Its totient is φ = 19387396993872.

The previous prime is 21003013410007. The next prime is 21003013410053. The reversal of 21003013410041 is 14001431030012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5591924325625 + 15411089084416 = 2364725^2 + 3925696^2 .

It is a cyclic number.

It is not a de Polignac number, because 21003013410041 - 2⁶ = 21003013409977 is a prime.

It is a super-2 number, since 2×21003013410041² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21003013409995 and 21003013410022.

It is not an unprimeable number, because it can be changed into a prime (21003012410041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807808208066 + ... + 807808208091.

It is an arithmetic number, because the mean of its divisors is an integer number (5654657456553).

Almost surely, 2^{21003013410041} is an apocalyptic number.

It is an amenable number.

21003013410041 is a deficient number, since it is larger than the sum of its proper divisors (1615616416171).

21003013410041 is a wasteful number, since it uses less digits than its factorization.

21003013410041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615616416170.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21003013410041 its reverse (14001431030012), we get a palindrome (35004444440053).

The spelling of 21003013410041 in words is "twenty-one trillion, three billion, thirteen million, four hundred ten thousand, forty-one".