1312143201 has 24 divisors (see below), whose sum is σ = 1906931520. Its totient is φ = 869422176.

The previous prime is 1312143197. The next prime is 1312143223. The reversal of 1312143201 is 1023412131.

1312143201 is a `hidden beast` number, since 131 + 214 + 320 + 1 = 666.

It is not a de Polignac number, because 1312143201 - 2² = 1312143197 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1312143271) 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 23 ways as a sum of consecutive naturals, for example, 1765636 + ... + 1766378.

It is an arithmetic number, because the mean of its divisors is an integer number (79455480).

Almost surely, 2^1312143201 is an apocalyptic number.

It is an amenable number.

1312143201 is a deficient number, since it is larger than the sum of its proper divisors (594788319).

1312143201 is a wasteful number, since it uses less digits than its factorization.

1312143201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685 (or 1682 counting only the distinct ones).

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

The square root of 1312143201 is about 36223.5172367345. The cubic root of 1312143201 is about 1094.7805627708.

Adding to 1312143201 its reverse (1023412131), we get a palindrome (2335555332).

The spelling of 1312143201 in words is "one billion, three hundred twelve million, one hundred forty-three thousand, two hundred one".