1020423330 has 24 divisors (see below), whose sum is σ = 2653100892. Its totient is φ = 272112864.

The previous prime is 1020423323. The next prime is 1020423343. The reversal of 1020423330 is 333240201.

1020423330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 858548601 + 161874729 = 29301^2 + 12723^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5668929 + ... + 5669108.

Almost surely, 2^1020423330 is an apocalyptic number.

1020423330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020423330 is an abundant number, since it is smaller than the sum of its proper divisors (1632677562).

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

1020423330 is a wasteful number, since it uses less digits than its factorization.

1020423330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11338050 (or 11338047 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 1020423330 is about 31944.0656460633. The cubic root of 1020423330 is about 1006.7619496427.

Adding to 1020423330 its reverse (333240201), we get a palindrome (1353663531).

The spelling of 1020423330 in words is "one billion, twenty million, four hundred twenty-three thousand, three hundred thirty".