1020320435 has 8 divisors (see below), whose sum is σ = 1235828016. Its totient is φ = 808627360.

The previous prime is 1020320429. The next prime is 1020320491. The reversal of 1020320435 is 5340230201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1020320435 - 2⁴ = 1020320419 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 953036 + ... + 954105.

It is an arithmetic number, because the mean of its divisors is an integer number (154478502).

Almost surely, 2^1020320435 is an apocalyptic number.

1020320435 is a deficient number, since it is larger than the sum of its proper divisors (215507581).

1020320435 is a wasteful number, since it uses less digits than its factorization.

1020320435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907253.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 1020320435 is about 31942.4550559283. The cubic root of 1020320435 is about 1006.7281093564.

Adding to 1020320435 its reverse (5340230201), we get a palindrome (6360550636).

The spelling of 1020320435 in words is "one billion, twenty million, three hundred twenty thousand, four hundred thirty-five".