123319634171 has 4 divisors (see below), whose sum is σ = 123327879792. Its totient is φ = 123311388552.

The previous prime is 123319634153. The next prime is 123319634213. The reversal of 123319634171 is 171436913321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171436913321 = 17 ⋅10084524313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123319634171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123319634101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4100336 + ... + 4130301.

It is an arithmetic number, because the mean of its divisors is an integer number (30831969948).

Almost surely, 2^123319634171 is an apocalyptic number.

123319634171 is a deficient number, since it is larger than the sum of its proper divisors (8245621).

123319634171 is an equidigital number, since it uses as much as digits as its factorization.

123319634171 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8245620.

The product of its digits is 81648, while the sum is 41.

The spelling of 123319634171 in words is "one hundred twenty-three billion, three hundred nineteen million, six hundred thirty-four thousand, one hundred seventy-one".