1020000320 has 56 divisors (see below), whose sum is σ = 2534497344. Its totient is φ = 390258176.

The previous prime is 1020000301. The next prime is 1020000329. The reversal of 1020000320 is 230000201.

1020000320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a junction number, because it is equal to n+sod(n) for n = 1020000298 and 1020000307.

It is not an unprimeable number, because it can be changed into a prime (1020000329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61934 + ... + 76653.

Almost surely, 2^1020000320 is an apocalyptic number.

1020000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020000320 is an abundant number, since it is smaller than the sum of its proper divisors (1514497024).

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

1020000320 is a wasteful number, since it uses less digits than its factorization.

1020000320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138627 (or 138617 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1020000320 is about 31937.4438551366. The cubic root of 1020000320 is about 1006.6228148278.

Adding to 1020000320 its reverse (230000201), we get a palindrome (1250000521).

The spelling of 1020000320 in words is "one billion, twenty million, three hundred twenty", and thus it is an aban number.