130015123 has 4 divisors (see below), whose sum is σ = 148588720. Its totient is φ = 111441528.

The previous prime is 130015121. The next prime is 130015139. The reversal of 130015123 is 321510031.

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 130015123 - 2¹ = 130015121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130015097 and 130015106.

It is not an unprimeable number, because it can be changed into a prime (130015121) 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, 9286788 + ... + 9286801.

It is an arithmetic number, because the mean of its divisors is an integer number (37147180).

Almost surely, 2^130015123 is an apocalyptic number.

130015123 is a deficient number, since it is larger than the sum of its proper divisors (18573597).

130015123 is an equidigital number, since it uses as much as digits as its factorization.

130015123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18573596.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 130015123 is about 11402.4174191265. The cubic root of 130015123 is about 506.5993447506.

Adding to 130015123 its reverse (321510031), we get a palindrome (451525154).

The spelling of 130015123 in words is "one hundred thirty million, fifteen thousand, one hundred twenty-three".