1131320125 has 32 divisors (see below), whose sum is σ = 1543336704. Its totient is φ = 822888000.

The previous prime is 1131320111. The next prime is 1131320143. The reversal of 1131320125 is 5210231311.

It is not a de Polignac number, because 1131320125 - 2⁹ = 1131319613 is a prime.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 103680 + ... + 114070.

It is an arithmetic number, because the mean of its divisors is an integer number (48229272).

Almost surely, 2^1131320125 is an apocalyptic number.

It is an amenable number.

1131320125 is a deficient number, since it is larger than the sum of its proper divisors (412016579).

1131320125 is a wasteful number, since it uses less digits than its factorization.

1131320125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10486 (or 10476 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1131320125 is about 33635.1025715695. The cubic root of 1131320125 is about 1041.9858890077.

Adding to 1131320125 its reverse (5210231311), we get a palindrome (6341551436).

The spelling of 1131320125 in words is "one billion, one hundred thirty-one million, three hundred twenty thousand, one hundred twenty-five".