130140123 has 4 divisors (see below), whose sum is σ = 173520168. Its totient is φ = 86760080.

The previous prime is 130140107. The next prime is 130140149. The reversal of 130140123 is 321041031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130140123 - 2⁴ = 130140107 is a prime.

It is a super-2 number, since 2×130140123² = 33872903228910258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130140103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21690018 + ... + 21690023.

It is an arithmetic number, because the mean of its divisors is an integer number (43380042).

Almost surely, 2^130140123 is an apocalyptic number.

130140123 is a deficient number, since it is larger than the sum of its proper divisors (43380045).

130140123 is an equidigital number, since it uses as much as digits as its factorization.

130140123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43380044.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 130140123 is about 11407.8973961024. The cubic root of 130140123 is about 506.7616454465.

Adding to 130140123 its reverse (321041031), we get a palindrome (451181154).

The spelling of 130140123 in words is "one hundred thirty million, one hundred forty thousand, one hundred twenty-three".