1311321034 has 16 divisors (see below), whose sum is σ = 2100238272. Its totient is φ = 612567648.

The previous prime is 1311321031. The next prime is 1311321041. The reversal of 1311321034 is 4301231131.

It is not an unprimeable number, because it can be changed into a prime (1311321031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329499 + ... + 333454.

It is an arithmetic number, because the mean of its divisors is an integer number (131264892).

Almost surely, 2^1311321034 is an apocalyptic number.

1311321034 is a deficient number, since it is larger than the sum of its proper divisors (788917238).

1311321034 is a wasteful number, since it uses less digits than its factorization.

1311321034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663021.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1311321034 is about 36212.1669332284. The cubic root of 1311321034 is about 1094.5518579288.

Adding to 1311321034 its reverse (4301231131), we get a palindrome (5612552165).

The spelling of 1311321034 in words is "one billion, three hundred eleven million, three hundred twenty-one thousand, thirty-four".