102171234123 has 36 divisors (see below), whose sum is σ = 171887760408. Its totient is φ = 58311368640.

The previous prime is 102171234101. The next prime is 102171234167. The reversal of 102171234123 is 321432171201.

102171234123 is a `hidden beast` number, since 10 + 217 + 1 + 23 + 412 + 3 = 666.

It is not a de Polignac number, because 102171234123 - 2⁶ = 102171234059 is a prime.

It is a super-2 number, since 2×102171234123² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102171234223) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 214815 + ... + 500487.

Almost surely, 2^102171234123 is an apocalyptic number.

102171234123 is a deficient number, since it is larger than the sum of its proper divisors (69716526285).

102171234123 is a wasteful number, since it uses less digits than its factorization.

102171234123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286504 (or 286494 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The spelling of 102171234123 in words is "one hundred two billion, one hundred seventy-one million, two hundred thirty-four thousand, one hundred twenty-three".