1013203020000 has 240 divisors, whose sum is σ = 3331098207360. Its totient is φ = 269570496000.

The previous prime is 1013203019981. The next prime is 1013203020001. The reversal of 1013203020000 is 203023101.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013203020001) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 26560941 + ... + 26599059.

It is an arithmetic number, because the mean of its divisors is an integer number (13879575864).

Almost surely, 2^{1013203020000} is an apocalyptic number.

1013203020000 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 1013203020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1665549103680).

1013203020000 is an abundant number, since it is smaller than the sum of its proper divisors (2317895187360).

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

1013203020000 is an equidigital number, since it uses as much as digits as its factorization.

1013203020000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38595 (or 38572 counting only the distinct ones).

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

Adding to 1013203020000 its reverse (203023101), we get a palindrome (1013406043101).

The spelling of 1013203020000 in words is "one trillion, thirteen billion, two hundred three million, twenty thousand".