1311202113208 has 16 divisors (see below), whose sum is σ = 2647619651880. Its totient is φ = 605170206048.

The previous prime is 1311202113163. The next prime is 1311202113211. The reversal of 1311202113208 is 8023112021131.

It is a super-2 number, since 2×1311202113208² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6303856210 + ... + 6303856417.

Almost surely, 2^{1311202113208} is an apocalyptic number.

It is an amenable number.

1311202113208 is an abundant number, since it is smaller than the sum of its proper divisors (1336417538672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311202113208 is a wasteful number, since it uses less digits than its factorization.

1311202113208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12607712646 (or 12607712642 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 1311202113208 its reverse (8023112021131), we get a palindrome (9334314134339).

The spelling of 1311202113208 in words is "one trillion, three hundred eleven billion, two hundred two million, one hundred thirteen thousand, two hundred eight".