1303423310209 has 2 divisors, whose sum is σ = 1303423310210. Its totient is φ = 1303423310208.

The previous prime is 1303423310183. The next prime is 1303423310249. The reversal of 1303423310209 is 9020133243031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720801000000 + 582622310209 = 849000^2 + 763297^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303423310209 - 2²⁵ = 1303389755777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1303423310249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651711655104 + 651711655105.

It is an arithmetic number, because the mean of its divisors is an integer number (651711655105).

Almost surely, 2^{1303423310209} is an apocalyptic number.

It is an amenable number.

1303423310209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303423310209 is an equidigital number, since it uses as much as digits as its factorization.

1303423310209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 31.

The spelling of 1303423310209 in words is "one trillion, three hundred three billion, four hundred twenty-three million, three hundred ten thousand, two hundred nine".