1312342235 has 4 divisors (see below), whose sum is σ = 1574810688. Its totient is φ = 1049873784.

The previous prime is 1312342219. The next prime is 1312342237. The reversal of 1312342235 is 5322432131.

It is a happy number.

1312342235 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5322432131 = 17 ⋅313084243.

It is a cyclic number.

It is not a de Polignac number, because 1312342235 - 2⁴ = 1312342219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312342237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131234219 + ... + 131234228.

It is an arithmetic number, because the mean of its divisors is an integer number (393702672).

Almost surely, 2^1312342235 is an apocalyptic number.

1312342235 is a deficient number, since it is larger than the sum of its proper divisors (262468453).

1312342235 is an equidigital number, since it uses as much as digits as its factorization.

1312342235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262468452.

The product of its digits is 4320, while the sum is 26.

The square root of 1312342235 is about 36226.2644361794. The cubic root of 1312342235 is about 1094.8359143356.

Adding to 1312342235 its reverse (5322432131), we get a palindrome (6634774366).

The spelling of 1312342235 in words is "one billion, three hundred twelve million, three hundred forty-two thousand, two hundred thirty-five".