21732012301 has 2 divisors, whose sum is σ = 21732012302. Its totient is φ = 21732012300.

The previous prime is 21732012193. The next prime is 21732012311. The reversal of 21732012301 is 10321023712.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20786142276 + 945870025 = 144174^2 + 30755^2 .

It is a cyclic number.

It is not a de Polignac number, because 21732012301 - 2²⁹ = 21195141389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21732012311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10866006150 + 10866006151.

It is an arithmetic number, because the mean of its divisors is an integer number (10866006151).

Almost surely, 2^21732012301 is an apocalyptic number.

It is an amenable number.

21732012301 is a deficient number, since it is larger than the sum of its proper divisors (1).

21732012301 is an equidigital number, since it uses as much as digits as its factorization.

21732012301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The spelling of 21732012301 in words is "twenty-one billion, seven hundred thirty-two million, twelve thousand, three hundred one".