1311332332332 has 72 divisors (see below), whose sum is σ = 3365284850928. Its totient is φ = 397129969280.

The previous prime is 1311332332291. The next prime is 1311332332333. The reversal of 1311332332332 is 2332332331131.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1311332332332.

It is not an unprimeable number, because it can be changed into a prime (1311332332333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2101078 + ... + 2652770.

It is an arithmetic number, because the mean of its divisors is an integer number (46740067374).

Almost surely, 2^{1311332332332} is an apocalyptic number.

1311332332332 is a gapful number since it is divisible by the number (12) 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 1311332332332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1682642425464).

1311332332332 is an abundant number, since it is smaller than the sum of its proper divisors (2053952518596).

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

1311332332332 is a wasteful number, since it uses less digits than its factorization.

1311332332332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553359 (or 553346 counting only the distinct ones).

The product of its digits is 17496, while the sum is 30.

Adding to 1311332332332 its reverse (2332332331131), we get a palindrome (3643664663463).

The spelling of 1311332332332 in words is "one trillion, three hundred eleven billion, three hundred thirty-two million, three hundred thirty-two thousand, three hundred thirty-two".