1311030220000 has 120 divisors (see below), whose sum is σ = 3293957421216. Its totient is φ = 513254016000.

The previous prime is 1311030219959. The next prime is 1311030220007. The reversal of 1311030220000 is 220301131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311030220007) 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, 242644 + ... + 1637356.

Almost surely, 2^{1311030220000} is an apocalyptic number.

1311030220000 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 1311030220000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646978710608).

1311030220000 is an abundant number, since it is smaller than the sum of its proper divisors (1982927201216).

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

1311030220000 is an equidigital number, since it uses as much as digits as its factorization.

1311030220000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394790 (or 1394767 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1311030220000 its reverse (220301131), we get a palindrome (1311250521131).

The spelling of 1311030220000 in words is "one trillion, three hundred eleven billion, thirty million, two hundred twenty thousand".