1311214240000 has 180 divisors, whose sum is σ = 3737816065984. Its totient is φ = 449558784000.

The previous prime is 1311214239967. The next prime is 1311214240001. The reversal of 1311214240000 is 424121131.

It is a self number, because there is not a number n which added to its sum of digits gives 1311214240000.

It is not an unprimeable number, because it can be changed into a prime (1311214240001) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 534637 + ... + 1705363.

Almost surely, 2^{1311214240000} is an apocalyptic number.

1311214240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1311214240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1868908032992).

1311214240000 is an abundant number, since it is smaller than the sum of its proper divisors (2426601825984).

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

1311214240000 is an frugal number, since it uses more digits than its factorization.

1311214240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1170770 (or 1170741 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1311214240000 its reverse (424121131), we get a palindrome (1311638361131).

The spelling of 1311214240000 in words is "one trillion, three hundred eleven billion, two hundred fourteen million, two hundred forty thousand".