1303213232281 has 2 divisors, whose sum is σ = 1303213232282. Its totient is φ = 1303213232280.

The previous prime is 1303213232221. The next prime is 1303213232327. The reversal of 1303213232281 is 1822323123031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 895122239881 + 408090992400 = 946109^2 + 638820^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303213232281 is a prime.

It is a super-2 number, since 2×1303213232281² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1303213232221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651606616140 + 651606616141.

It is an arithmetic number, because the mean of its divisors is an integer number (651606616141).

Almost surely, 2^{1303213232281} is an apocalyptic number.

It is an amenable number.

1303213232281 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303213232281 is an equidigital number, since it uses as much as digits as its factorization.

1303213232281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 1303213232281 in words is "one trillion, three hundred three billion, two hundred thirteen million, two hundred thirty-two thousand, two hundred eighty-one".