21001410041 has 2 divisors, whose sum is σ = 21001410042. Its totient is φ = 21001410040.

The previous prime is 21001410029. The next prime is 21001410047. The reversal of 21001410041 is 14001410012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15643755625 + 5357654416 = 125075^2 + 73196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21001410041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21001409998 and 21001410025.

It is not a weakly prime, because it can be changed into another prime (21001410047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500705020 + 10500705021.

It is an arithmetic number, because the mean of its divisors is an integer number (10500705021).

Almost surely, 2^21001410041 is an apocalyptic number.

It is an amenable number.

21001410041 is a deficient number, since it is larger than the sum of its proper divisors (1).

21001410041 is an equidigital number, since it uses as much as digits as its factorization.

21001410041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21001410041 its reverse (14001410012), we get a palindrome (35002820053).

It can be divided in two parts, 2100 and 1410041, that added together give a palindrome (1412141).

The spelling of 21001410041 in words is "twenty-one billion, one million, four hundred ten thousand, forty-one".