1130535121 has 4 divisors (see below), whose sum is σ = 1131450292. Its totient is φ = 1129619952.

The previous prime is 1130535089. The next prime is 1130535151. The reversal of 1130535121 is 1215350311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1215350311 = 7 ⋅173621473.

It can be written as a sum of positive squares in 2 ways, for example, as 933974721 + 196560400 = 30561^2 + 14020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130535121 - 2⁵ = 1130535089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130535092 and 1130535101.

It is not an unprimeable number, because it can be changed into a prime (1130535151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455730 + ... + 458203.

It is an arithmetic number, because the mean of its divisors is an integer number (282862573).

Almost surely, 2^1130535121 is an apocalyptic number.

It is an amenable number.

1130535121 is a deficient number, since it is larger than the sum of its proper divisors (915171).

1130535121 is an equidigital number, since it uses as much as digits as its factorization.

1130535121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915170.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 1130535121 is about 33623.4311306862. The cubic root of 1130535121 is about 1041.7448277507.

Adding to 1130535121 its reverse (1215350311), we get a palindrome (2345885432).

The spelling of 1130535121 in words is "one billion, one hundred thirty million, five hundred thirty-five thousand, one hundred twenty-one".