1311243414 has 16 divisors (see below), whose sum is σ = 2824216752. Its totient is φ = 403459488.

The previous prime is 1311243413. The next prime is 1311243431. The reversal of 1311243414 is 4143421131.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311243413) 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, 8405329 + ... + 8405484.

It is an arithmetic number, because the mean of its divisors is an integer number (176513547).

Almost surely, 2^1311243414 is an apocalyptic number.

1311243414 is an abundant number, since it is smaller than the sum of its proper divisors (1512973338).

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

1311243414 is a wasteful number, since it uses less digits than its factorization.

1311243414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16810831.

The product of its digits is 1152, while the sum is 24.

The square root of 1311243414 is about 36211.0951781357. The cubic root of 1311243414 is about 1094.5302611854.

Adding to 1311243414 its reverse (4143421131), we get a palindrome (5454664545).

The spelling of 1311243414 in words is "one billion, three hundred eleven million, two hundred forty-three thousand, four hundred fourteen".