1311230016526 has 8 divisors (see below), whose sum is σ = 1988944407360. Its totient is φ = 648248547408.

The previous prime is 1311230016521. The next prime is 1311230016617. The reversal of 1311230016526 is 6256100321131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311230016521) 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, 3683230206 + ... + 3683230561.

It is an arithmetic number, because the mean of its divisors is an integer number (248618050920).

Almost surely, 2^{1311230016526} is an apocalyptic number.

1311230016526 is a deficient number, since it is larger than the sum of its proper divisors (677714390834).

1311230016526 is an equidigital number, since it uses as much as digits as its factorization.

1311230016526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7366460858.

The product of its (nonzero) digits is 6480, while the sum is 31.

Adding to 1311230016526 its reverse (6256100321131), we get a palindrome (7567330337657).

The spelling of 1311230016526 in words is "one trillion, three hundred eleven billion, two hundred thirty million, sixteen thousand, five hundred twenty-six".