9023042730209 has 2 divisors, whose sum is σ = 9023042730210. Its totient is φ = 9023042730208.

The previous prime is 9023042730137. The next prime is 9023042730301. The reversal of 9023042730209 is 9020372403209.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9022574137600 + 468592609 = 3003760^2 + 21647^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9023042730209 is a prime.

It is a super-2 number, since 2×9023042730209² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9023042738209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4511521365104 + 4511521365105.

It is an arithmetic number, because the mean of its divisors is an integer number (4511521365105).

Almost surely, 2^{9023042730209} is an apocalyptic number.

It is an amenable number.

9023042730209 is a deficient number, since it is larger than the sum of its proper divisors (1).

9023042730209 is an equidigital number, since it uses as much as digits as its factorization.

9023042730209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 9023042730209 in words is "nine trillion, twenty-three billion, forty-two million, seven hundred thirty thousand, two hundred nine".