123345632171 has 4 divisors (see below), whose sum is σ = 124437186552. Its totient is φ = 122254077792.

The previous prime is 123345632167. The next prime is 123345632177. The reversal of 123345632171 is 171236543321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 171236543321 = 3547 ⋅48276443.

It is a cyclic number.

It is not a de Polignac number, because 123345632171 - 2² = 123345632167 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123345632177) 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, 545777021 + ... + 545777246.

It is an arithmetic number, because the mean of its divisors is an integer number (31109296638).

Almost surely, 2^123345632171 is an apocalyptic number.

123345632171 is a deficient number, since it is larger than the sum of its proper divisors (1091554381).

123345632171 is a wasteful number, since it uses less digits than its factorization.

123345632171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091554380.

The product of its digits is 90720, while the sum is 38.

The spelling of 123345632171 in words is "one hundred twenty-three billion, three hundred forty-five million, six hundred thirty-two thousand, one hundred seventy-one".