1310243011111 has 4 divisors (see below), whose sum is σ = 1310248382800. Its totient is φ = 1310237639424.

The previous prime is 1310243011067. The next prime is 1310243011141. The reversal of 1310243011111 is 1111103420131.

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 1310243011111 - 2¹¹ = 1310243009063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310243011141) 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 in 3 ways as a sum of consecutive naturals, for example, 2301651 + ... + 2813908.

It is an arithmetic number, because the mean of its divisors is an integer number (327562095700).

Almost surely, 2^{1310243011111} is an apocalyptic number.

1310243011111 is a deficient number, since it is larger than the sum of its proper divisors (5371689).

1310243011111 is an equidigital number, since it uses as much as digits as its factorization.

1310243011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5371688.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1310243011111 its reverse (1111103420131), we get a palindrome (2421346431242).

The spelling of 1310243011111 in words is "one trillion, three hundred ten billion, two hundred forty-three million, eleven thousand, one hundred eleven".