1312131411 has 24 divisors (see below), whose sum is σ = 1929660720. Its totient is φ = 858945600.

The previous prime is 1312131409. The next prime is 1312131433. The reversal of 1312131411 is 1141312131.

It is a happy number.

It is not a de Polignac number, because 1312131411 - 2¹ = 1312131409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312131011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387556 + ... + 390926.

It is an arithmetic number, because the mean of its divisors is an integer number (80402530).

Almost surely, 2^1312131411 is an apocalyptic number.

1312131411 is a deficient number, since it is larger than the sum of its proper divisors (617529309).

1312131411 is a wasteful number, since it uses less digits than its factorization.

1312131411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4147 (or 4144 counting only the distinct ones).

The product of its digits is 72, while the sum is 18.

The square root of 1312131411 is about 36223.3544967884. The cubic root of 1312131411 is about 1094.7772837839. Note that the first 3 decimals are identical.

Adding to 1312131411 its reverse (1141312131), we get a palindrome (2453443542).

The spelling of 1312131411 in words is "one billion, three hundred twelve million, one hundred thirty-one thousand, four hundred eleven".