1020200330523 has 32 divisors (see below), whose sum is σ = 1488818852352. Its totient is φ = 616268620800.

The previous prime is 1020200330519. The next prime is 1020200330561. The reversal of 1020200330523 is 3250330020201.

It is not a de Polignac number, because 1020200330523 - 2² = 1020200330519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1020200330523.

It is not an unprimeable number, because it can be changed into a prime (1020200330623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12329178 + ... + 12411648.

It is an arithmetic number, because the mean of its divisors is an integer number (46525589136).

Almost surely, 2^{1020200330523} is an apocalyptic number.

1020200330523 is a deficient number, since it is larger than the sum of its proper divisors (468618521829).

1020200330523 is a wasteful number, since it uses less digits than its factorization.

1020200330523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83715.

The product of its (nonzero) digits is 1080, while the sum is 21.

Adding to 1020200330523 its reverse (3250330020201), we get a palindrome (4270530350724).

The spelling of 1020200330523 in words is "one trillion, twenty billion, two hundred million, three hundred thirty thousand, five hundred twenty-three".