1312341023 has 4 divisors (see below), whose sum is σ = 1499818320. Its totient is φ = 1124863728.

The previous prime is 1312341013. The next prime is 1312341053. The reversal of 1312341023 is 3201432131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3201432131 = 1103 ⋅2902477.

It is a cyclic number.

It is not a de Polignac number, because 1312341023 - 2⁸ = 1312340767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312340986 and 1312341004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312341013) 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, 93738638 + ... + 93738651.

It is an arithmetic number, because the mean of its divisors is an integer number (374954580).

Almost surely, 2^1312341023 is an apocalyptic number.

1312341023 is a deficient number, since it is larger than the sum of its proper divisors (187477297).

1312341023 is an equidigital number, since it uses as much as digits as its factorization.

1312341023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187477296.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1312341023 is about 36226.2477079810. The cubic root of 1312341023 is about 1094.8355772941.

Adding to 1312341023 its reverse (3201432131), we get a palindrome (4513773154).

The spelling of 1312341023 in words is "one billion, three hundred twelve million, three hundred forty-one thousand, twenty-three".