101130123 has 4 divisors (see below), whose sum is σ = 134840168. Its totient is φ = 67420080.

The previous prime is 101130119. The next prime is 101130143. The reversal of 101130123 is 321031101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321031101 = 3 ⋅107010367.

It is not a de Polignac number, because 101130123 - 2² = 101130119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101130099 and 101130108.

It is not an unprimeable number, because it can be changed into a prime (101130143) 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, 16855018 + ... + 16855023.

It is an arithmetic number, because the mean of its divisors is an integer number (33710042).

Almost surely, 2^101130123 is an apocalyptic number.

101130123 is a deficient number, since it is larger than the sum of its proper divisors (33710045).

101130123 is an equidigital number, since it uses as much as digits as its factorization.

101130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33710044.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 101130123 is about 10056.3473985339. The cubic root of 101130123 is about 465.9008596897.

Adding to 101130123 its reverse (321031101), we get a palindrome (422161224).

The spelling of 101130123 in words is "one hundred one million, one hundred thirty thousand, one hundred twenty-three".