1020313520 has 40 divisors (see below), whose sum is σ = 2407647984. Its totient is φ = 402031872.

The previous prime is 1020313513. The next prime is 1020313537. The reversal of 1020313520 is 253130201.

It is a tau number, because it is divible by the number of its divisors (40).

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, 89819 + ... + 100538.

Almost surely, 2^1020313520 is an apocalyptic number.

1020313520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020313520 is an abundant number, since it is smaller than the sum of its proper divisors (1387334464).

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

1020313520 is a wasteful number, since it uses less digits than its factorization.

1020313520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190437 (or 190431 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1020313520 is about 31942.3468142214. The cubic root of 1020313520 is about 1006.7258350576.

Adding to 1020313520 its reverse (253130201), we get a palindrome (1273443721).

The spelling of 1020313520 in words is "one billion, twenty million, three hundred thirteen thousand, five hundred twenty".