320433412009 has 2 divisors, whose sum is σ = 320433412010. Its totient is φ = 320433412008.

The previous prime is 320433412001. The next prime is 320433412027. The reversal of 320433412009 is 900214334023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 286088056384 + 34345355625 = 534872^2 + 185325^2 .

It is a cyclic number.

It is not a de Polignac number, because 320433412009 - 2³ = 320433412001 is a prime.

It is not a weakly prime, because it can be changed into another prime (320433412001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160216706004 + 160216706005.

It is an arithmetic number, because the mean of its divisors is an integer number (160216706005).

Almost surely, 2^320433412009 is an apocalyptic number.

It is an amenable number.

320433412009 is a deficient number, since it is larger than the sum of its proper divisors (1).

320433412009 is an equidigital number, since it uses as much as digits as its factorization.

320433412009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

The spelling of 320433412009 in words is "three hundred twenty billion, four hundred thirty-three million, four hundred twelve thousand, nine".