1201130305 has 4 divisors (see below), whose sum is σ = 1441356372. Its totient is φ = 960904240.

The previous prime is 1201130303. The next prime is 1201130317. The reversal of 1201130305 is 5030311021.

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 271063296 + 930067009 = 16464^2 + 30497^2 .

It is not a de Polignac number, because 1201130305 - 2¹ = 1201130303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201130303) 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, 120113026 + ... + 120113035.

It is an arithmetic number, because the mean of its divisors is an integer number (360339093).

Almost surely, 2^1201130305 is an apocalyptic number.

It is an amenable number.

1201130305 is a deficient number, since it is larger than the sum of its proper divisors (240226067).

1201130305 is an equidigital number, since it uses as much as digits as its factorization.

1201130305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240226066.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1201130305 is about 34657.3268588332. The cubic root of 1201130305 is about 1062.9921112295.

Adding to 1201130305 its reverse (5030311021), we get a palindrome (6231441326).

The spelling of 1201130305 in words is "one billion, two hundred one million, one hundred thirty thousand, three hundred five".