1003111325 has 6 divisors (see below), whose sum is σ = 1243858074. Its totient is φ = 802489040.

The previous prime is 1003111321. The next prime is 1003111381. The reversal of 1003111325 is 5231113001.

It can be written as a sum of positive squares in 3 ways, for example, as 375769 + 1002735556 = 613^2 + 31666^2 .

It is not a de Polignac number, because 1003111325 - 2² = 1003111321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1003111321) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 20062202 + ... + 20062251.

It is an arithmetic number, because the mean of its divisors is an integer number (207309679).

Almost surely, 2^1003111325 is an apocalyptic number.

It is an amenable number.

1003111325 is a deficient number, since it is larger than the sum of its proper divisors (240746749).

1003111325 is an equidigital number, since it uses as much as digits as its factorization.

1003111325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40124463 (or 40124458 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1003111325 is about 31671.9327638842. The cubic root of 1003111325 is about 1001.0360345950.

Adding to 1003111325 its reverse (5231113001), we get a palindrome (6234224326).

The spelling of 1003111325 in words is "one billion, three million, one hundred eleven thousand, three hundred twenty-five".