1003123328 has 32 divisors (see below), whose sum is σ = 2001120660. Its totient is φ = 500881408.

The previous prime is 1003123321. The next prime is 1003123367. The reversal of 1003123328 is 8233213001.

It can be written as a sum of positive squares in 2 ways, for example, as 1003115584 + 7744 = 31672^2 + 88^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1003123328² = 2012512822355591168, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1003123321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97100 + ... + 106932.

Almost surely, 2^1003123328 is an apocalyptic number.

It is an amenable number.

1003123328 is a deficient number, since it is larger than the sum of its proper divisors (997997332).

1003123328 is an frugal number, since it uses more digits than its factorization.

1003123328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10644 (or 10632 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1003123328 is about 31672.1222528583. The cubic root of 1003123328 is about 1001.0400273016.

Adding to 1003123328 its reverse (8233213001), we get a palindrome (9236336329).

The spelling of 1003123328 in words is "one billion, three million, one hundred twenty-three thousand, three hundred twenty-eight".