1351103727243 has 4 divisors (see below), whose sum is σ = 1801471636328. Its totient is φ = 900735818160.

The previous prime is 1351103727241. The next prime is 1351103727247. The reversal of 1351103727243 is 3427273011531.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1351103727243 - 2¹ = 1351103727241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1351103727241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 225183954538 + ... + 225183954543.

It is an arithmetic number, because the mean of its divisors is an integer number (450367909082).

Almost surely, 2^{1351103727243} is an apocalyptic number.

1351103727243 is a deficient number, since it is larger than the sum of its proper divisors (450367909085).

1351103727243 is an equidigital number, since it uses as much as digits as its factorization.

1351103727243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450367909084.

The product of its (nonzero) digits is 105840, while the sum is 39.

Adding to 1351103727243 its reverse (3427273011531), we get a palindrome (4778376738774).

The spelling of 1351103727243 in words is "one trillion, three hundred fifty-one billion, one hundred three million, seven hundred twenty-seven thousand, two hundred forty-three".