1317001330432 has 144 divisors (see below), whose sum is σ = 2853034168320. Its totient is φ = 604448538624.

The previous prime is 1317001330409. The next prime is 1317001330487. The reversal of 1317001330432 is 2340331007131.

It is a self number, because there is not a number n which added to its sum of digits gives 1317001330432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32589343 + ... + 32629729.

It is an arithmetic number, because the mean of its divisors is an integer number (19812737280).

Almost surely, 2^{1317001330432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1317001330432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1426517084160).

1317001330432 is an abundant number, since it is smaller than the sum of its proper divisors (1536032837888).

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

1317001330432 is a wasteful number, since it uses less digits than its factorization.

1317001330432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40606 (or 40592 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 28.

Adding to 1317001330432 its reverse (2340331007131), we get a palindrome (3657332337563).

The spelling of 1317001330432 in words is "one trillion, three hundred seventeen billion, one million, three hundred thirty thousand, four hundred thirty-two".