1311324201 has 32 divisors (see below), whose sum is σ = 2150976000. Its totient is φ = 782868240.

The previous prime is 1311324199. The next prime is 1311324229. The reversal of 1311324201 is 1024231131.

It is not a de Polignac number, because 1311324201 - 2¹ = 1311324199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311324281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13051 + ... + 52848.

It is an arithmetic number, because the mean of its divisors is an integer number (67218000).

Almost surely, 2^1311324201 is an apocalyptic number.

1311324201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1311324201 is a deficient number, since it is larger than the sum of its proper divisors (839651799).

1311324201 is a wasteful number, since it uses less digits than its factorization.

1311324201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65986 (or 65980 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1311324201 is about 36212.2106615987. The cubic root of 1311324201 is about 1094.5527390867.

Adding to 1311324201 its reverse (1024231131), we get a palindrome (2335555332).

The spelling of 1311324201 in words is "one billion, three hundred eleven million, three hundred twenty-four thousand, two hundred one".