1213003010309 has 2 divisors, whose sum is σ = 1213003010310. Its totient is φ = 1213003010308.

The previous prime is 1213003010293. The next prime is 1213003010327. The reversal of 1213003010309 is 9030103003121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 610171888225 + 602831122084 = 781135^2 + 776422^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213003010309 - 2⁴ = 1213003010293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213003010209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606501505154 + 606501505155.

It is an arithmetic number, because the mean of its divisors is an integer number (606501505155).

Almost surely, 2^{1213003010309} is an apocalyptic number.

It is an amenable number.

1213003010309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213003010309 is an equidigital number, since it uses as much as digits as its factorization.

1213003010309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 1213003010309 in words is "one trillion, two hundred thirteen billion, three million, ten thousand, three hundred nine".