1020243300 has 144 divisors (see below), whose sum is σ = 3026181312. Its totient is φ = 265305600.

The previous prime is 1020243299. The next prime is 1020243311. The reversal of 1020243300 is 33420201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1020243300.

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, 3604959 + ... + 3605241.

It is an arithmetic number, because the mean of its divisors is an integer number (21015148).

Almost surely, 2^1020243300 is an apocalyptic number.

1020243300 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 1020243300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1513090656).

1020243300 is an abundant number, since it is smaller than the sum of its proper divisors (2005938012).

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

1020243300 is a wasteful number, since it uses less digits than its factorization.

1020243300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1020243300 is about 31941.2476274801. The cubic root of 1020243300 is about 1006.7027395715.

Adding to 1020243300 its reverse (33420201), we get a palindrome (1053663501).

The spelling of 1020243300 in words is "one billion, twenty million, two hundred forty-three thousand, three hundred".