1310042041243 has 4 divisors (see below), whose sum is σ = 1410814505968. Its totient is φ = 1209269576520.

The previous prime is 1310042041219. The next prime is 1310042041291. The reversal of 1310042041243 is 3421402400131.

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

It is a cyclic number.

It is not a de Polignac number, because 1310042041243 - 2¹⁷ = 1310041910171 is a prime.

It is a super-2 number, since 2×1310042041243² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310042041213) 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, 50386232343 + ... + 50386232368.

It is an arithmetic number, because the mean of its divisors is an integer number (352703626492).

Almost surely, 2^{1310042041243} is an apocalyptic number.

1310042041243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1310042041243 is a deficient number, since it is larger than the sum of its proper divisors (100772464725).

1310042041243 is a wasteful number, since it uses less digits than its factorization.

1310042041243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100772464724.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1310042041243 its reverse (3421402400131), we get a palindrome (4731444441374).

The spelling of 1310042041243 in words is "one trillion, three hundred ten billion, forty-two million, forty-one thousand, two hundred forty-three".