1312013311108 has 6 divisors (see below), whose sum is σ = 2296023294446. Its totient is φ = 656006655552.

The previous prime is 1312013311087. The next prime is 1312013311117. The reversal of 1312013311108 is 8011133102131.

It can be written as a sum of positive squares in only one way, i.e., 1301771466304 + 10241844804 = 1140952^2 + 101202^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164001663885 + ... + 164001663892.

Almost surely, 2^{1312013311108} is an apocalyptic number.

It is an amenable number.

1312013311108 is a deficient number, since it is larger than the sum of its proper divisors (984009983338).

1312013311108 is a wasteful number, since it uses less digits than its factorization.

1312013311108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328003327781 (or 328003327779 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 25.

Adding to 1312013311108 its reverse (8011133102131), we get a palindrome (9323146413239).

The spelling of 1312013311108 in words is "one trillion, three hundred twelve billion, thirteen million, three hundred eleven thousand, one hundred eight".