1311434355 has 64 divisors (see below), whose sum is σ = 2729852928. Its totient is φ = 521304960.

The previous prime is 1311434353. The next prime is 1311434363. The reversal of 1311434355 is 5534341131.

It is not a de Polignac number, because 1311434355 - 2¹ = 1311434353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311434353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1882 + ... + 51248.

It is an arithmetic number, because the mean of its divisors is an integer number (42653952).

Almost surely, 2^1311434355 is an apocalyptic number.

1311434355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1311434355 is an abundant number, since it is smaller than the sum of its proper divisors (1418418573).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311434355 is a wasteful number, since it uses less digits than its factorization.

1311434355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49416.

The product of its digits is 10800, while the sum is 30.

The square root of 1311434355 is about 36213.7315807140. The cubic root of 1311434355 is about 1094.5833864752.

Adding to 1311434355 its reverse (5534341131), we get a palindrome (6845775486).

The spelling of 1311434355 in words is "one billion, three hundred eleven million, four hundred thirty-four thousand, three hundred fifty-five".