130240723 has 8 divisors (see below), whose sum is σ = 141266160. Its totient is φ = 119589120.

The previous prime is 130240717. The next prime is 130240739. The reversal of 130240723 is 327042031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130240723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130240694 and 130240703.

It is not an unprimeable number, because it can be changed into a prime (130240753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92733 + ... + 94126.

It is an arithmetic number, because the mean of its divisors is an integer number (17658270).

Almost surely, 2^130240723 is an apocalyptic number.

130240723 is a deficient number, since it is larger than the sum of its proper divisors (11025437).

130240723 is a wasteful number, since it uses less digits than its factorization.

130240723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186917.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 130240723 is about 11412.3057705268. The cubic root of 130240723 is about 506.8921895858.

Adding to 130240723 its reverse (327042031), we get a palindrome (457282754).

It can be divided in two parts, 1302 and 40723, that added together give a square (42025 = 205²).

The spelling of 130240723 in words is "one hundred thirty million, two hundred forty thousand, seven hundred twenty-three".