21003032212301 has 2 divisors, whose sum is σ = 21003032212302. Its totient is φ = 21003032212300.

The previous prime is 21003032212297. The next prime is 21003032212367. The reversal of 21003032212301 is 10321223030012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20956014795076 + 47017417225 = 4577774^2 + 216835^2 .

It is a cyclic number.

It is not a de Polignac number, because 21003032212301 - 2² = 21003032212297 is a prime.

It is a super-2 number, since 2×21003032212301² (a number of 27 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21003032212901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501516106150 + 10501516106151.

It is an arithmetic number, because the mean of its divisors is an integer number (10501516106151).

Almost surely, 2^{21003032212301} is an apocalyptic number.

It is an amenable number.

21003032212301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003032212301 is an equidigital number, since it uses as much as digits as its factorization.

21003032212301 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21003032212301 its reverse (10321223030012), we get a palindrome (31324255242313).

The spelling of 21003032212301 in words is "twenty-one trillion, three billion, thirty-two million, two hundred twelve thousand, three hundred one".