21031411330001 has 2 divisors, whose sum is σ = 21031411330002. Its totient is φ = 21031411330000.

The previous prime is 21031411329961. The next prime is 21031411330043. The reversal of 21031411330001 is 10003311413012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20982116229376 + 49295100625 = 4580624^2 + 222025^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21031411330001 is a prime.

It is not a weakly prime, because it can be changed into another prime (21031411330051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515705665000 + 10515705665001.

It is an arithmetic number, because the mean of its divisors is an integer number (10515705665001).

Almost surely, 2^{21031411330001} is an apocalyptic number.

It is an amenable number.

21031411330001 is a deficient number, since it is larger than the sum of its proper divisors (1).

21031411330001 is an equidigital number, since it uses as much as digits as its factorization.

21031411330001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21031411330001 its reverse (10003311413012), we get a palindrome (31034722743013).

The spelling of 21031411330001 in words is "twenty-one trillion, thirty-one billion, four hundred eleven million, three hundred thirty thousand, one".