1130231211 has 4 divisors (see below), whose sum is σ = 1506974952. Its totient is φ = 753487472.

The previous prime is 1130231177. The next prime is 1130231227. The reversal of 1130231211 is 1121320311.

It is a happy number.

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 1130231211 - 2³⁰ = 56489387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1130239211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188371866 + ... + 188371871.

It is an arithmetic number, because the mean of its divisors is an integer number (376743738).

Almost surely, 2^1130231211 is an apocalyptic number.

1130231211 is a deficient number, since it is larger than the sum of its proper divisors (376743741).

1130231211 is an equidigital number, since it uses as much as digits as its factorization.

1130231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376743740.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1130231211 is about 33618.9115082568. The cubic root of 1130231211 is about 1041.6514722420.

Adding to 1130231211 its reverse (1121320311), we get a palindrome (2251551522).

The spelling of 1130231211 in words is "one billion, one hundred thirty million, two hundred thirty-one thousand, two hundred eleven".