130550321 has 4 divisors (see below), whose sum is σ = 142418544. Its totient is φ = 118682100.

The previous prime is 130550267. The next prime is 130550347. The reversal of 130550321 is 123055031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123055031 = 11 ⋅11186821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130550321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130550293 and 130550302.

It is not an unprimeable number, because it can be changed into a prime (130550621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5934095 + ... + 5934116.

It is an arithmetic number, because the mean of its divisors is an integer number (35604636).

Almost surely, 2^130550321 is an apocalyptic number.

130550321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130550321 is a deficient number, since it is larger than the sum of its proper divisors (11868223).

130550321 is a wasteful number, since it uses less digits than its factorization.

130550321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11868222.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 130550321 is about 11425.8619368519. The cubic root of 130550321 is about 507.2935198278.

The spelling of 130550321 in words is "one hundred thirty million, five hundred fifty thousand, three hundred twenty-one".