1020313320 has 64 divisors (see below), whose sum is σ = 3296401920. Its totient is φ = 251153664.

The previous prime is 1020313313. The next prime is 1020313337. The reversal of 1020313320 is 233130201.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1020313320.

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 15 ways as a sum of consecutive naturals, for example, 325464 + ... + 328583.

It is an arithmetic number, because the mean of its divisors is an integer number (51506280).

Almost surely, 2^1020313320 is an apocalyptic number.

1020313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020313320 is an abundant number, since it is smaller than the sum of its proper divisors (2276088600).

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

1020313320 is a wasteful number, since it uses less digits than its factorization.

1020313320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654074 (or 654070 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1020313320 is about 31942.3436835809. The cubic root of 1020313320 is about 1006.7257692787.

Adding to 1020313320 its reverse (233130201), we get a palindrome (1253443521).

The spelling of 1020313320 in words is "one billion, twenty million, three hundred thirteen thousand, three hundred twenty".