210001332443941 has 2 divisors, whose sum is σ = 210001332443942. Its totient is φ = 210001332443940.

The previous prime is 210001332443909. The next prime is 210001332444053. The reversal of 210001332443941 is 149344233100012.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175589663550625 + 34411668893316 = 13251025^2 + 5866146^2 .

It is a cyclic number.

It is not a de Polignac number, because 210001332443941 - 2⁵ = 210001332443909 is a prime.

It is a super-2 number, since 2×210001332443941² (a number of 29 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 210001332443941.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210001732443941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105000666221970 + 105000666221971.

It is an arithmetic number, because the mean of its divisors is an integer number (105000666221971).

Almost surely, 2^{210001332443941} is an apocalyptic number.

It is an amenable number.

210001332443941 is a deficient number, since it is larger than the sum of its proper divisors (1).

210001332443941 is an equidigital number, since it uses as much as digits as its factorization.

210001332443941 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 210001332443941 its reverse (149344233100012), we get a palindrome (359345565543953).

The spelling of 210001332443941 in words is "two hundred ten trillion, one billion, three hundred thirty-two million, four hundred forty-three thousand, nine hundred forty-one".