123147896171 has 2 divisors, whose sum is σ = 123147896172. Its totient is φ = 123147896170.

The previous prime is 123147896159. The next prime is 123147896189. The reversal of 123147896171 is 171698741321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123147896171 - 2⁶ = 123147896107 is a prime.

It is a super-2 number, since 2×123147896171² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (123147898171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61573948085 + 61573948086.

It is an arithmetic number, because the mean of its divisors is an integer number (61573948086).

Almost surely, 2^123147896171 is an apocalyptic number.

123147896171 is a deficient number, since it is larger than the sum of its proper divisors (1).

123147896171 is an equidigital number, since it uses as much as digits as its factorization.

123147896171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 50.

The spelling of 123147896171 in words is "one hundred twenty-three billion, one hundred forty-seven million, eight hundred ninety-six thousand, one hundred seventy-one".