1023315320320 has 80 divisors (see below), whose sum is σ = 2457858834288. Its totient is φ = 408608686080.

The previous prime is 1023315320299. The next prime is 1023315320333. The reversal of 1023315320320 is 230235133201.

It is a tau number, because it is divible by the number of its divisors (80).

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, 1111732 + ... + 1811788.

Almost surely, 2^{1023315320320} is an apocalyptic number.

1023315320320 is a gapful number since it is divisible by the number (10) 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 1023315320320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1228929417144).

1023315320320 is an abundant number, since it is smaller than the sum of its proper divisors (1434543513968).

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

1023315320320 is an frugal number, since it uses more digits than its factorization.

1023315320320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700651 (or 700635 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 25.

The spelling of 1023315320320 in words is "one trillion, twenty-three billion, three hundred fifteen million, three hundred twenty thousand, three hundred twenty".