1020200535 has 64 divisors (see below), whose sum is σ = 1992268800. Its totient is φ = 493029504.

The previous prime is 1020200521. The next prime is 1020200563. The reversal of 1020200535 is 5350020201.

It is a happy number.

It is not a de Polignac number, because 1020200535 - 2⁹ = 1020200023 is a prime.

It is a super-2 number, since 2×1020200535² = 2081618263228572450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 50349 + ... + 67641.

It is an arithmetic number, because the mean of its divisors is an integer number (31129200).

Almost surely, 2^1020200535 is an apocalyptic number.

1020200535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020200535 is a deficient number, since it is larger than the sum of its proper divisors (972068265).

1020200535 is a wasteful number, since it uses less digits than its factorization.

1020200535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17349 (or 17343 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 1020200535 is about 31940.5781882545. The cubic root of 1020200535 is about 1006.6886735658.

Adding to 1020200535 its reverse (5350020201), we get a palindrome (6370220736).

The spelling of 1020200535 in words is "one billion, twenty million, two hundred thousand, five hundred thirty-five".