1318170613031 has 2 divisors, whose sum is σ = 1318170613032. Its totient is φ = 1318170613030.

The previous prime is 1318170613021. The next prime is 1318170613043. The reversal of 1318170613031 is 1303160718131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1318170613031 - 2²⁶ = 1318103504167 is a prime.

It is a super-2 number, since 2×1318170613031² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1318170612982 and 1318170613000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1318170613021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659085306515 + 659085306516.

It is an arithmetic number, because the mean of its divisors is an integer number (659085306516).

Almost surely, 2^{1318170613031} is an apocalyptic number.

1318170613031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1318170613031 is an equidigital number, since it uses as much as digits as its factorization.

1318170613031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 1318170613031 in words is "one trillion, three hundred eighteen billion, one hundred seventy million, six hundred thirteen thousand, thirty-one".