1312442353 has 4 divisors (see below), whose sum is σ = 1369505088. Its totient is φ = 1255379620.

The previous prime is 1312442333. The next prime is 1312442359. The reversal of 1312442353 is 3532442131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3532442131 = 43 ⋅82149817.

It is a cyclic number.

It is not a de Polignac number, because 1312442353 - 2⁹ = 1312441841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312442359) 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 3 ways as a sum of consecutive naturals, for example, 28531333 + ... + 28531378.

It is an arithmetic number, because the mean of its divisors is an integer number (342376272).

Almost surely, 2^1312442353 is an apocalyptic number.

It is an amenable number.

1312442353 is a deficient number, since it is larger than the sum of its proper divisors (57062735).

1312442353 is an equidigital number, since it uses as much as digits as its factorization.

1312442353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57062734.

The product of its digits is 8640, while the sum is 28.

The square root of 1312442353 is about 36227.6462525514. The cubic root of 1312442353 is about 1094.8637551411.

Adding to 1312442353 its reverse (3532442131), we get a palindrome (4844884484).

The spelling of 1312442353 in words is "one billion, three hundred twelve million, four hundred forty-two thousand, three hundred fifty-three".