1311032104440 has 96 divisors (see below), whose sum is σ = 4042269690480. Its totient is φ = 340159638528.

The previous prime is 1311032104423. The next prime is 1311032104451. The reversal of 1311032104440 is 444012301131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1311032104440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3825957 + ... + 4154516.

Almost surely, 2^{1311032104440} is an apocalyptic number.

1311032104440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311032104440 is an abundant number, since it is smaller than the sum of its proper divisors (2731237586040).

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

1311032104440 is a wasteful number, since it uses less digits than its factorization.

1311032104440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7980561 (or 7980520 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1311032104440 its reverse (444012301131), we get a palindrome (1755044405571).

The spelling of 1311032104440 in words is "one trillion, three hundred eleven billion, thirty-two million, one hundred four thousand, four hundred forty".