1351643531327 has 2 divisors, whose sum is σ = 1351643531328. Its totient is φ = 1351643531326.

The previous prime is 1351643531179. The next prime is 1351643531333. The reversal of 1351643531327 is 7231353461531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1351643531327 - 2⁸ = 1351643531071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1351643531377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675821765663 + 675821765664.

It is an arithmetic number, because the mean of its divisors is an integer number (675821765664).

Almost surely, 2^{1351643531327} is an apocalyptic number.

1351643531327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351643531327 is an equidigital number, since it uses as much as digits as its factorization.

1351643531327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 44.

Adding to 1351643531327 its reverse (7231353461531), we get a palindrome (8582996992858).

The spelling of 1351643531327 in words is "one trillion, three hundred fifty-one billion, six hundred forty-three million, five hundred thirty-one thousand, three hundred twenty-seven".