130440023 has 8 divisors (see below), whose sum is σ = 149298048. Its totient is φ = 111637944.

The previous prime is 130439987. The next prime is 130440041. The reversal of 130440023 is 320044031.

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

It is a cyclic number.

It is not a de Polignac number, because 130440023 - 2¹² = 130435927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130439983 and 130440010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130440083) 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 7 ways as a sum of consecutive naturals, for example, 8861 + ... + 18422.

It is an arithmetic number, because the mean of its divisors is an integer number (18662256).

Almost surely, 2^130440023 is an apocalyptic number.

130440023 is a deficient number, since it is larger than the sum of its proper divisors (18858025).

130440023 is an equidigital number, since it uses as much as digits as its factorization.

130440023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27973.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 130440023 is about 11421.0342351295. The cubic root of 130440023 is about 507.1506139470.

Adding to 130440023 its reverse (320044031), we get a palindrome (450484054).

The spelling of 130440023 in words is "one hundred thirty million, four hundred forty thousand, twenty-three".