4012606321 has 2 divisors, whose sum is σ = 4012606322. Its totient is φ = 4012606320.

The previous prime is 4012606223. The next prime is 4012606363. The reversal of 4012606321 is 1236062104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2624000625 + 1388605696 = 51225^2 + 37264^2 .

It is a cyclic number.

It is not a de Polignac number, because 4012606321 - 2⁷ = 4012606193 is a prime.

It is a super-2 number, since 2×4012606321² = 32202018974658310082, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (4012606391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2006303160 + 2006303161.

It is an arithmetic number, because the mean of its divisors is an integer number (2006303161).

Almost surely, 2^4012606321 is an apocalyptic number.

It is an amenable number.

4012606321 is a deficient number, since it is larger than the sum of its proper divisors (1).

4012606321 is an equidigital number, since it uses as much as digits as its factorization.

4012606321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 4012606321 is about 63345.1365220725. The cubic root of 4012606321 is about 1589.0669104311.

Adding to 4012606321 its reverse (1236062104), we get a palindrome (5248668425).

The spelling of 4012606321 in words is "four billion, twelve million, six hundred six thousand, three hundred twenty-one".