1125131303 has 4 divisors (see below), whose sum is σ = 1184348760. Its totient is φ = 1065913848.

The previous prime is 1125131297. The next prime is 1125131321. The reversal of 1125131303 is 3031315211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125131303 - 2⁸ = 1125131047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125131323) 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, 29608700 + ... + 29608737.

It is an arithmetic number, because the mean of its divisors is an integer number (296087190).

Almost surely, 2^1125131303 is an apocalyptic number.

1125131303 is a deficient number, since it is larger than the sum of its proper divisors (59217457).

1125131303 is an equidigital number, since it uses as much as digits as its factorization.

1125131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59217456.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1125131303 is about 33542.9769549454. The cubic root of 1125131303 is about 1040.0823723587.

Adding to 1125131303 its reverse (3031315211), we get a palindrome (4156446514).

The spelling of 1125131303 in words is "one billion, one hundred twenty-five million, one hundred thirty-one thousand, three hundred three".