1328215627241 has 2 divisors, whose sum is σ = 1328215627242. Its totient is φ = 1328215627240.

The previous prime is 1328215627157. The next prime is 1328215627243. The reversal of 1328215627241 is 1427265128231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1257044592400 + 71171034841 = 1121180^2 + 266779^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328215627241 - 2¹⁴ = 1328215610857 is a prime.

It is a super-2 number, since 2×1328215627241² (a number of 25 digits) contains 22 as substring.

Together with 1328215627243, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1328215627192 and 1328215627201.

It is not a weakly prime, because it can be changed into another prime (1328215627243) 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, 664107813620 + 664107813621.

It is an arithmetic number, because the mean of its divisors is an integer number (664107813621).

Almost surely, 2^{1328215627241} is an apocalyptic number.

It is an amenable number.

1328215627241 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328215627241 is an equidigital number, since it uses as much as digits as its factorization.

1328215627241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 44.

The spelling of 1328215627241 in words is "one trillion, three hundred twenty-eight billion, two hundred fifteen million, six hundred twenty-seven thousand, two hundred forty-one".