1303211222009 has 2 divisors, whose sum is σ = 1303211222010. Its totient is φ = 1303211222008.

The previous prime is 1303211221997. The next prime is 1303211222021. The reversal of 1303211222009 is 9002221123031.

It is a balanced prime because it is at equal distance from previous prime (1303211221997) and next prime (1303211222021).

It can be written as a sum of positive squares in only one way, i.e., 918070585600 + 385140636409 = 958160^2 + 620597^2 .

It is an emirp because it is prime and its reverse (9002221123031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1303211222009 - 2²⁴ = 1303194444793 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1303211222039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651605611004 + 651605611005.

It is an arithmetic number, because the mean of its divisors is an integer number (651605611005).

Almost surely, 2^{1303211222009} is an apocalyptic number.

It is an amenable number.

1303211222009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303211222009 is an equidigital number, since it uses as much as digits as its factorization.

1303211222009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 1303211222009 in words is "one trillion, three hundred three billion, two hundred eleven million, two hundred twenty-two thousand, nine".