1023321311000 has 128 divisors (see below), whose sum is σ = 2438057793600. Its totient is φ = 401911603200.

The previous prime is 1023321310967. The next prime is 1023321311021. The reversal of 1023321311000 is 1131233201.

It is a self number, because there is not a number n which added to its sum of digits gives 1023321311000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51733112 + ... + 51752888.

Almost surely, 2^{1023321311000} is an apocalyptic number.

1023321311000 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 1023321311000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1219028896800).

1023321311000 is an abundant number, since it is smaller than the sum of its proper divisors (1414736482600).

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

1023321311000 is a wasteful number, since it uses less digits than its factorization.

1023321311000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20734 (or 20720 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1023321311000 its reverse (1131233201), we get a palindrome (1024452544201).

The spelling of 1023321311000 in words is "one trillion, twenty-three billion, three hundred twenty-one million, three hundred eleven thousand".