1023020004 has 24 divisors (see below), whose sum is σ = 2389149280. Its totient is φ = 340706304.

The previous prime is 1023019997. The next prime is 1023020039. The reversal of 1023020004 is 4000203201.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 23134 + ... + 50805.

Almost surely, 2^1023020004 is an apocalyptic number.

It is an amenable number.

1023020004 is an abundant number, since it is smaller than the sum of its proper divisors (1366129276).

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

1023020004 is a wasteful number, since it uses less digits than its factorization.

1023020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75099 (or 75097 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1023020004 is about 31984.6838971405. The cubic root of 1023020004 is about 1007.6151962479.

Adding to 1023020004 its reverse (4000203201), we get a palindrome (5023223205).

The spelling of 1023020004 in words is "one billion, twenty-three million, twenty thousand, four".