1311421041 has 12 divisors (see below), whose sum is σ = 2164885632. Its totient is φ = 749383416.

The previous prime is 1311421031. The next prime is 1311421043. The reversal of 1311421041 is 1401241131.

It is not a de Polignac number, because 1311421041 - 2¹⁰ = 1311420017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311421043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10408041 + ... + 10408166.

It is an arithmetic number, because the mean of its divisors is an integer number (180407136).

Almost surely, 2^1311421041 is an apocalyptic number.

It is an amenable number.

1311421041 is a deficient number, since it is larger than the sum of its proper divisors (853464591).

1311421041 is a wasteful number, since it uses less digits than its factorization.

1311421041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20816220 (or 20816217 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1311421041 is about 36213.5477549494. The cubic root of 1311421041 is about 1094.5796823039.

Adding to 1311421041 its reverse (1401241131), we get a palindrome (2712662172).

The spelling of 1311421041 in words is "one billion, three hundred eleven million, four hundred twenty-one thousand, forty-one".