1020320032 has 24 divisors (see below), whose sum is σ = 2024580096. Its totient is φ = 506140992.

The previous prime is 1020320027. The next prime is 1020320071. The reversal of 1020320032 is 2300230201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1020319994 and 1020320021.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121468 + ... + 129595.

It is an arithmetic number, because the mean of its divisors is an integer number (84357504).

Almost surely, 2^1020320032 is an apocalyptic number.

It is an amenable number.

1020320032 is a deficient number, since it is larger than the sum of its proper divisors (1004260064).

1020320032 is a wasteful number, since it uses less digits than its factorization.

1020320032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251200 (or 251192 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1020320032 is about 31942.4487477087. The cubic root of 1020320032 is about 1006.7279768125.

Adding to 1020320032 its reverse (2300230201), we get a palindrome (3320550233).

The spelling of 1020320032 in words is "one billion, twenty million, three hundred twenty thousand, thirty-two".