1003125320 has 16 divisors (see below), whose sum is σ = 2257032060. Its totient is φ = 401250112.

The previous prime is 1003125317. The next prime is 1003125337. The reversal of 1003125320 is 235213001.

It can be written as a sum of positive squares in 2 ways, for example, as 965842084 + 37283236 = 31078^2 + 6106^2 .

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, 12539027 + ... + 12539106.

Almost surely, 2^1003125320 is an apocalyptic number.

1003125320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1003125320 is an abundant number, since it is smaller than the sum of its proper divisors (1253906740).

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

1003125320 is a wasteful number, since it uses less digits than its factorization.

1003125320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25078144 (or 25078140 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1003125320 is about 31672.1537000565. The cubic root of 1003125320 is about 1001.0406899221.

Adding to 1003125320 its reverse (235213001), we get a palindrome (1238338321).

The spelling of 1003125320 in words is "one billion, three million, one hundred twenty-five thousand, three hundred twenty".