1020320415 has 32 divisors (see below), whose sum is σ = 1852508160. Its totient is φ = 532589472.

The previous prime is 1020320351. The next prime is 1020320419. The reversal of 1020320415 is 5140230201.

1020320415 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1020320415 - 2⁶ = 1020320351 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020320419) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 74059 + ... + 86748.

It is an arithmetic number, because the mean of its divisors is an integer number (57890880).

Almost surely, 2^1020320415 is an apocalyptic number.

1020320415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1020320415 is a deficient number, since it is larger than the sum of its proper divisors (832187745).

1020320415 is a wasteful number, since it uses less digits than its factorization.

1020320415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160868 (or 160862 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1020320415 is about 31942.4547428653. The cubic root of 1020320415 is about 1006.7281027785.

Adding to 1020320415 its reverse (5140230201), we get a palindrome (6160550616).

The spelling of 1020320415 in words is "one billion, twenty million, three hundred twenty thousand, four hundred fifteen".