1312163231839 has 2 divisors, whose sum is σ = 1312163231840. Its totient is φ = 1312163231838.

The previous prime is 1312163231761. The next prime is 1312163231879. The reversal of 1312163231839 is 9381323612131.

It is a strong prime.

It is an emirp because it is prime and its reverse (9381323612131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312163231839 - 2¹³ = 1312163223647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312163231795 and 1312163231804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312163231879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656081615919 + 656081615920.

It is an arithmetic number, because the mean of its divisors is an integer number (656081615920).

Almost surely, 2^{1312163231839} is an apocalyptic number.

1312163231839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312163231839 is an equidigital number, since it uses as much as digits as its factorization.

1312163231839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 43.

The spelling of 1312163231839 in words is "one trillion, three hundred twelve billion, one hundred sixty-three million, two hundred thirty-one thousand, eight hundred thirty-nine".