1311231014 has 4 divisors (see below), whose sum is σ = 1966846524. Its totient is φ = 655615506.

The previous prime is 1311231011. The next prime is 1311231017. The reversal of 1311231014 is 4101321131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4101321131 = 1019 ⋅4024849.

It is an interprime number because it is at equal distance from previous prime (1311231011) and next prime (1311231017).

It is a junction number, because it is equal to n+sod(n) for n = 1311230983 and 1311231001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311231011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 327807752 + ... + 327807755.

It is an arithmetic number, because the mean of its divisors is an integer number (491711631).

Almost surely, 2^1311231014 is an apocalyptic number.

1311231014 is a deficient number, since it is larger than the sum of its proper divisors (655615510).

1311231014 is an equidigital number, since it uses as much as digits as its factorization.

1311231014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655615509.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1311231014 is about 36210.9239594905. The cubic root of 1311231014 is about 1094.5268109696.

Adding to 1311231014 its reverse (4101321131), we get a palindrome (5412552145).

The spelling of 1311231014 in words is "one billion, three hundred eleven million, two hundred thirty-one thousand, fourteen".