1130430261 has 4 divisors (see below), whose sum is σ = 1507240352. Its totient is φ = 753620172.

The previous prime is 1130430241. The next prime is 1130430277. The reversal of 1130430261 is 1620340311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1130430261 - 2⁹ = 1130429749 is a prime.

It is a super-3 number, since 3×1130430261³ (a number of 28 digits) contains 333 as substring.

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 (1130430241) 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 3 ways as a sum of consecutive naturals, for example, 188405041 + ... + 188405046.

It is an arithmetic number, because the mean of its divisors is an integer number (376810088).

Almost surely, 2^1130430261 is an apocalyptic number.

It is an amenable number.

1130430261 is a deficient number, since it is larger than the sum of its proper divisors (376810091).

1130430261 is an equidigital number, since it uses as much as digits as its factorization.

1130430261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376810090.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1130430261 is about 33621.8717652661. The cubic root of 1130430261 is about 1041.7126185965.

Adding to 1130430261 its reverse (1620340311), we get a palindrome (2750770572).

The spelling of 1130430261 in words is "one billion, one hundred thirty million, four hundred thirty thousand, two hundred sixty-one".