1020323164 has 12 divisors (see below), whose sum is σ = 2040646384. Its totient is φ = 437281344.

The previous prime is 1020323159. The next prime is 1020323173. The reversal of 1020323164 is 4613230201.

1020323164 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18220029 + ... + 18220084.

Almost surely, 2^1020323164 is an apocalyptic number.

1020323164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1020323164 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1020323164 is a wasteful number, since it uses less digits than its factorization.

1020323164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36440124 (or 36440122 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1020323164 is about 31942.4977733426. The cubic root of 1020323164 is about 1006.7290069040.

Adding to 1020323164 its reverse (4613230201), we get a palindrome (5633553365).

The spelling of 1020323164 in words is "one billion, twenty million, three hundred twenty-three thousand, one hundred sixty-four".