320130461 has 4 divisors (see below), whose sum is σ = 365863392. Its totient is φ = 274397532.

The previous prime is 320130431. The next prime is 320130511. The reversal of 320130461 is 164031023.

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: 164031023 = 13 ⋅12617771.

It is a cyclic number.

It is not a de Polignac number, because 320130461 - 2¹⁴ = 320114077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320130431) 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, 22866455 + ... + 22866468.

It is an arithmetic number, because the mean of its divisors is an integer number (91465848).

Almost surely, 2^320130461 is an apocalyptic number.

It is an amenable number.

320130461 is a deficient number, since it is larger than the sum of its proper divisors (45732931).

320130461 is an equidigital number, since it uses as much as digits as its factorization.

320130461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45732930.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 320130461 is about 17892.1899442187. The cubic root of 320130461 is about 684.0833181966.

Adding to 320130461 its reverse (164031023), we get a palindrome (484161484).

The spelling of 320130461 in words is "three hundred twenty million, one hundred thirty thousand, four hundred sixty-one".