1311320001120 has 48 divisors (see below), whose sum is σ = 4130658005040. Its totient is φ = 349685333504.

The previous prime is 1311320001119. The next prime is 1311320001137. The reversal of 1311320001120 is 211000231131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1311320001120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1365957855 + ... + 1365958814.

It is an arithmetic number, because the mean of its divisors is an integer number (86055375105).

Almost surely, 2^{1311320001120} is an apocalyptic number.

1311320001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311320001120 is an abundant number, since it is smaller than the sum of its proper divisors (2819338003920).

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

1311320001120 is a wasteful number, since it uses less digits than its factorization.

1311320001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2731916687 (or 2731916679 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 1311320001120 its reverse (211000231131), we get a palindrome (1522320232251).

The spelling of 1311320001120 in words is "one trillion, three hundred eleven billion, three hundred twenty million, one thousand, one hundred twenty".