21031202233241 has 2 divisors, whose sum is σ = 21031202233242. Its totient is φ = 21031202233240.

The previous prime is 21031202233201. The next prime is 21031202233289. The reversal of 21031202233241 is 14233220213012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21009581471641 + 21620761600 = 4583621^2 + 147040^2 .

It is a cyclic number.

It is not a de Polignac number, because 21031202233241 - 2³⁰ = 21030128491417 is a prime.

It is a super-2 number, since 2×21031202233241² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21031202233241.

It is not a weakly prime, because it can be changed into another prime (21031202233201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515601116620 + 10515601116621.

It is an arithmetic number, because the mean of its divisors is an integer number (10515601116621).

Almost surely, 2^{21031202233241} is an apocalyptic number.

It is an amenable number.

21031202233241 is a deficient number, since it is larger than the sum of its proper divisors (1).

21031202233241 is an equidigital number, since it uses as much as digits as its factorization.

21031202233241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 21031202233241 its reverse (14233220213012), we get a palindrome (35264422446253).

The spelling of 21031202233241 in words is "twenty-one trillion, thirty-one billion, two hundred two million, two hundred thirty-three thousand, two hundred forty-one".