1002233435520 has 256 divisors, whose sum is σ = 3268550799360. Its totient is φ = 261135360000.

The previous prime is 1002233435509. The next prime is 1002233435521. The reversal of 1002233435520 is 255343322001.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002233435521) by changing a digit.

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, 17656785 + ... + 17713455.

It is an arithmetic number, because the mean of its divisors is an integer number (12767776560).

Almost surely, 2^{1002233435520} is an apocalyptic number.

1002233435520 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 1002233435520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634275399680).

1002233435520 is an abundant number, since it is smaller than the sum of its proper divisors (2266317363840).

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

1002233435520 is a wasteful number, since it uses less digits than its factorization.

1002233435520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56905 (or 56893 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 30.

Adding to 1002233435520 its reverse (255343322001), we get a palindrome (1257576757521).

The spelling of 1002233435520 in words is "one trillion, two billion, two hundred thirty-three million, four hundred thirty-five thousand, five hundred twenty".