1311330141 has 20 divisors (see below), whose sum is σ = 2136983904. Its totient is φ = 794745000.

The previous prime is 1311330133. The next prime is 1311330151. The reversal of 1311330141 is 1410331131.

It is not a de Polignac number, because 1311330141 - 2³ = 1311330133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311330151) 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 19 ways as a sum of consecutive naturals, for example, 734985 + ... + 736766.

Almost surely, 2^1311330141 is an apocalyptic number.

1311330141 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311330141 is a deficient number, since it is larger than the sum of its proper divisors (825653763).

1311330141 is a wasteful number, since it uses less digits than its factorization.

1311330141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471774 (or 1471765 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1311330141 is about 36212.2926780396. The cubic root of 1311330141 is about 1094.5543917758.

Adding to 1311330141 its reverse (1410331131), we get a palindrome (2721661272).

The spelling of 1311330141 in words is "one billion, three hundred eleven million, three hundred thirty thousand, one hundred forty-one".