1312227343 has 16 divisors (see below), whose sum is σ = 1580382720. Its totient is φ = 1064378016.

The previous prime is 1312227337. The next prime is 1312227353. The reversal of 1312227343 is 3437222131.

It is a cyclic number.

It is not a de Polignac number, because 1312227343 - 2²⁹ = 775356431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312227353) 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 15 ways as a sum of consecutive naturals, for example, 125721 + ... + 135757.

It is an arithmetic number, because the mean of its divisors is an integer number (98773920).

Almost surely, 2^1312227343 is an apocalyptic number.

1312227343 is a deficient number, since it is larger than the sum of its proper divisors (268155377).

1312227343 is a wasteful number, since it uses less digits than its factorization.

1312227343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11046.

The product of its digits is 6048, while the sum is 28.

The square root of 1312227343 is about 36224.6786459176. The cubic root of 1312227343 is about 1094.8039634325.

Adding to 1312227343 its reverse (3437222131), we get a palindrome (4749449474).

The spelling of 1312227343 in words is "one billion, three hundred twelve million, two hundred twenty-seven thousand, three hundred forty-three".