130923 has 16 divisors (see below), whose sum is σ = 209440. Its totient is φ = 80352.

The previous prime is 130873. The next prime is 130927. The reversal of 130923 is 329031.

130923 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 130923 - 2⁶ = 130859 is a prime.

It is an Ulam number.

It is a Duffinian number.

130923 is strictly pandigital in base 7.

It is a junction number, because it is equal to n+sod(n) for n = 130896 and 130905.

It is not an unprimeable number, because it can be changed into a prime (130927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 165 + ... + 537.

It is an arithmetic number, because the mean of its divisors is an integer number (13090).

2¹³⁰⁹²³ is an apocalyptic number.

130923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

130923 is a deficient number, since it is larger than the sum of its proper divisors (78517).

130923 is a wasteful number, since it uses less digits than its factorization.

130923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 130923 is about 361.8328343310. The cubic root of 130923 is about 50.7775780935. Note that the first 3 decimals are identical.

Adding to 130923 its reverse (329031), we get a palindrome (459954).

The spelling of 130923 in words is "one hundred thirty thousand, nine hundred twenty-three".