1130211305 has 4 divisors (see below), whose sum is σ = 1356253572. Its totient is φ = 904169040.

The previous prime is 1130211253. The next prime is 1130211307. The reversal of 1130211305 is 5031120311.

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

It can be written as a sum of positive squares in 2 ways, for example, as 285204544 + 845006761 = 16888^2 + 29069^2 .

It is not a de Polignac number, because 1130211305 - 2¹⁰ = 1130210281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1130211307) 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, 113021126 + ... + 113021135.

It is an arithmetic number, because the mean of its divisors is an integer number (339063393).

Almost surely, 2^1130211305 is an apocalyptic number.

It is an amenable number.

1130211305 is a deficient number, since it is larger than the sum of its proper divisors (226042267).

1130211305 is an equidigital number, since it uses as much as digits as its factorization.

1130211305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226042266.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 1130211305 is about 33618.6154533467. The cubic root of 1130211305 is about 1041.6453569045.

Adding to 1130211305 its reverse (5031120311), we get a palindrome (6161331616).

The spelling of 1130211305 in words is "one billion, one hundred thirty million, two hundred eleven thousand, three hundred five".