171356120339 has 2 divisors, whose sum is σ = 171356120340. Its totient is φ = 171356120338.

The previous prime is 171356120333. The next prime is 171356120371. The reversal of 171356120339 is 933021653171.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-171356120339 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 171356120296 and 171356120305.

It is not a weakly prime, because it can be changed into another prime (171356120333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85678060169 + 85678060170.

It is an arithmetic number, because the mean of its divisors is an integer number (85678060170).

Almost surely, 2^171356120339 is an apocalyptic number.

171356120339 is a deficient number, since it is larger than the sum of its proper divisors (1).

171356120339 is an equidigital number, since it uses as much as digits as its factorization.

171356120339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 41.

The spelling of 171356120339 in words is "one hundred seventy-one billion, three hundred fifty-six million, one hundred twenty thousand, three hundred thirty-nine".