101712123 has 12 divisors (see below), whose sum is σ = 147223128. Its totient is φ = 67667040.

The previous prime is 101712109. The next prime is 101712179. The reversal of 101712123 is 321217101.

It is a happy number.

It is not a de Polignac number, because 101712123 - 2¹⁴ = 101695739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101712096 and 101712105.

It is not an unprimeable number, because it can be changed into a prime (101712323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7090 + ... + 15927.

It is an arithmetic number, because the mean of its divisors is an integer number (12268594).

Almost surely, 2^101712123 is an apocalyptic number.

101712123 is a deficient number, since it is larger than the sum of its proper divisors (45511005).

101712123 is a wasteful number, since it uses less digits than its factorization.

101712123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23514 (or 23511 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 101712123 is about 10085.2428329714. The cubic root of 101712123 is about 466.7928978814.

Adding to 101712123 its reverse (321217101), we get a palindrome (422929224).

The spelling of 101712123 in words is "one hundred one million, seven hundred twelve thousand, one hundred twenty-three".