12063721 has 2 divisors, whose sum is σ = 12063722. Its totient is φ = 12063720.

The previous prime is 12063719. The next prime is 12063763. The reversal of 12063721 is 12736021.

12063721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8202496 + 3861225 = 2864^2 + 1965^2 .

It is a cyclic number.

It is not a de Polignac number, because 12063721 - 2¹ = 12063719 is a prime.

Together with 12063719, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 12063692 and 12063701.

It is not a weakly prime, because it can be changed into another prime (12063781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6031860 + 6031861.

It is an arithmetic number, because the mean of its divisors is an integer number (6031861).

Almost surely, 2^12063721 is an apocalyptic number.

It is an amenable number.

12063721 is a deficient number, since it is larger than the sum of its proper divisors (1).

12063721 is an equidigital number, since it uses as much as digits as its factorization.

12063721 is an evil number, because the sum of its binary digits is even.

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

The square root of 12063721 is about 3473.2867719208. The cubic root of 12063721 is about 229.3473685430.

Adding to 12063721 its reverse (12736021), we get a palindrome (24799742).

The spelling of 12063721 in words is "twelve million, sixty-three thousand, seven hundred twenty-one".