1020323100000 has 288 divisors, whose sum is σ = 3438237251232. Its totient is φ = 264729600000.

The previous prime is 1020323099989. The next prime is 1020323100061. The reversal of 1020323100000 is 13230201.

It is a happy number.

It is a super-2 number, since 2×1020323100000² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11054040 + ... + 11145960.

It is an arithmetic number, because the mean of its divisors is an integer number (11938323789).

Almost surely, 2^{1020323100000} is an apocalyptic number.

1020323100000 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 1020323100000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1719118625616).

1020323100000 is an abundant number, since it is smaller than the sum of its proper divisors (2417914151232).

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

1020323100000 is an frugal number, since it uses more digits than its factorization.

1020323100000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91996 (or 91968 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 1020323100000 its reverse (13230201), we get a palindrome (1020336330201).

The spelling of 1020323100000 in words is "one trillion, twenty billion, three hundred twenty-three million, one hundred thousand".