131310320 has 20 divisors (see below), whose sum is σ = 305296680. Its totient is φ = 52524096.

The previous prime is 131310317. The next prime is 131310323. The reversal of 131310320 is 23013131.

It is an interprime number because it is at equal distance from previous prime (131310317) and next prime (131310323).

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 131310295 and 131310304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131310323) 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, 820610 + ... + 820769.

It is an arithmetic number, because the mean of its divisors is an integer number (15264834).

Almost surely, 2^131310320 is an apocalyptic number.

131310320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131310320 is an abundant number, since it is smaller than the sum of its proper divisors (173986360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131310320 is a wasteful number, since it uses less digits than its factorization.

131310320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641392 (or 1641386 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131310320 is about 11459.0715156159. The cubic root of 131310320 is about 508.2760192182.

Adding to 131310320 its reverse (23013131), we get a palindrome (154323451).

The spelling of 131310320 in words is "one hundred thirty-one million, three hundred ten thousand, three hundred twenty".