130321231 has 4 divisors (see below), whose sum is σ = 132266392. Its totient is φ = 128376072.

The previous prime is 130321229. The next prime is 130321249. The reversal of 130321231 is 132123031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132123031 = 17 ⋅7771943.

It is a cyclic number.

It is not a de Polignac number, because 130321231 - 2¹ = 130321229 is a prime.

It is a super-2 number, since 2×130321231² = 33967246498710722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130321291) 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, 972480 + ... + 972613.

It is an arithmetic number, because the mean of its divisors is an integer number (33066598).

Almost surely, 2^130321231 is an apocalyptic number.

130321231 is a deficient number, since it is larger than the sum of its proper divisors (1945161).

130321231 is an equidigital number, since it uses as much as digits as its factorization.

130321231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945160.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130321231 is about 11415.8324707399. The cubic root of 130321231 is about 506.9966128151.

Adding to 130321231 its reverse (132123031), we get a palindrome (262444262).

The spelling of 130321231 in words is "one hundred thirty million, three hundred twenty-one thousand, two hundred thirty-one".