1311343152 has 80 divisors (see below), whose sum is σ = 3996506112. Its totient is φ = 362580480.

The previous prime is 1311343147. The next prime is 1311343157. The reversal of 1311343152 is 2513431131.

It is an interprime number because it is at equal distance from previous prime (1311343147) and next prime (1311343157).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1311343157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52533 + ... + 73364.

Almost surely, 2^1311343152 is an apocalyptic number.

1311343152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1311343152 is an abundant number, since it is smaller than the sum of its proper divisors (2685162960).

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

1311343152 is a wasteful number, since it uses less digits than its factorization.

1311343152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125946 (or 125940 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 1311343152 is about 36212.4723265341. The cubic root of 1311343152 is about 1094.5580118151.

Adding to 1311343152 its reverse (2513431131), we get a palindrome (3824774283).

It can be divided in two parts, 13113 and 43152, that added together give a palindrome (56265).

The spelling of 1311343152 in words is "one billion, three hundred eleven million, three hundred forty-three thousand, one hundred fifty-two".