21023030241011 has 2 divisors, whose sum is σ = 21023030241012. Its totient is φ = 21023030241010.

The previous prime is 21023030241007. The next prime is 21023030241023. The reversal of 21023030241011 is 11014203032012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21023030241011 - 2² = 21023030241007 is a prime.

It is not a weakly prime, because it can be changed into another prime (21023030241041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10511515120505 + 10511515120506.

It is an arithmetic number, because the mean of its divisors is an integer number (10511515120506).

Almost surely, 2^{21023030241011} is an apocalyptic number.

21023030241011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21023030241011 is an equidigital number, since it uses as much as digits as its factorization.

21023030241011 is an odious number, because the sum of its binary digits is odd.

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

Adding to 21023030241011 its reverse (11014203032012), we get a palindrome (32037233273023).

The spelling of 21023030241011 in words is "twenty-one trillion, twenty-three billion, thirty million, two hundred forty-one thousand, eleven".