1320041929728 has 176 divisors, whose sum is σ = 3642374484000. Its totient is φ = 424530935808.

The previous prime is 1320041929721. The next prime is 1320041929769. The reversal of 1320041929728 is 8279291400231.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320041929721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143337988 + ... + 143347196.

Almost surely, 2^{1320041929728} 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 1320041929728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821187242000).

1320041929728 is an abundant number, since it is smaller than the sum of its proper divisors (2322332554272).

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

1320041929728 is a wasteful number, since it uses less digits than its factorization.

1320041929728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10870 (or 10852 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The spelling of 1320041929728 in words is "one trillion, three hundred twenty billion, forty-one million, nine hundred twenty-nine thousand, seven hundred twenty-eight".