1351103727121 has 2 divisors, whose sum is σ = 1351103727122. Its totient is φ = 1351103727120.

The previous prime is 1351103727053. The next prime is 1351103727133. The reversal of 1351103727121 is 1217273011531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 890654625025 + 460449102096 = 943745^2 + 678564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1351103727121 is a prime.

It is not a weakly prime, because it can be changed into another prime (1351103727221) 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, 675551863560 + 675551863561.

It is an arithmetic number, because the mean of its divisors is an integer number (675551863561).

Almost surely, 2^{1351103727121} is an apocalyptic number.

It is an amenable number.

1351103727121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351103727121 is an equidigital number, since it uses as much as digits as its factorization.

1351103727121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8820, while the sum is 34.

Adding to 1351103727121 its reverse (1217273011531), we get a palindrome (2568376738652).

The spelling of 1351103727121 in words is "one trillion, three hundred fifty-one billion, one hundred three million, seven hundred twenty-seven thousand, one hundred twenty-one".