1311130321 has 8 divisors (see below), whose sum is σ = 1461322080. Its totient is φ = 1169057088.

The previous prime is 1311130277. The next prime is 1311130357. The reversal of 1311130321 is 1230311131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311130321 - 2²¹ = 1309033169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1311130295 and 1311130304.

It is not an unprimeable number, because it can be changed into a prime (1311130361) 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 7 ways as a sum of consecutive naturals, for example, 2029291 + ... + 2029936.

It is an arithmetic number, because the mean of its divisors is an integer number (182665260).

Almost surely, 2^1311130321 is an apocalyptic number.

It is an amenable number.

1311130321 is a deficient number, since it is larger than the sum of its proper divisors (150191759).

1311130321 is a wasteful number, since it uses less digits than its factorization.

1311130321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059263.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1311130321 is about 36209.5335650710. The cubic root of 1311130321 is about 1094.4987930211.

Adding to 1311130321 its reverse (1230311131), we get a palindrome (2541441452).

The spelling of 1311130321 in words is "one billion, three hundred eleven million, one hundred thirty thousand, three hundred twenty-one".