130440323 has 4 divisors (see below), whose sum is σ = 140474208. Its totient is φ = 120406440.

The previous prime is 130440319. The next prime is 130440341. The reversal of 130440323 is 323044031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323044031 = 383 ⋅843457.

It is a cyclic number.

It is not a de Polignac number, because 130440323 - 2² = 130440319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130440295 and 130440304.

It is not an unprimeable number, because it can be changed into a prime (130440313) 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, 5016923 + ... + 5016948.

It is an arithmetic number, because the mean of its divisors is an integer number (35118552).

Almost surely, 2^130440323 is an apocalyptic number.

130440323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

130440323 is a deficient number, since it is larger than the sum of its proper divisors (10033885).

130440323 is a wasteful number, since it uses less digits than its factorization.

130440323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10033884.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 130440323 is about 11421.0473687837. The cubic root of 130440323 is about 507.1510027465.

Adding to 130440323 its reverse (323044031), we get a palindrome (453484354).

The spelling of 130440323 in words is "one hundred thirty million, four hundred forty thousand, three hundred twenty-three".