131033320 has 48 divisors (see below), whose sum is σ = 324075780. Its totient is φ = 47646720.

The previous prime is 131033267. The next prime is 131033327. The reversal of 131033320 is 23330131.

It can be written as a sum of positive squares in 2 ways, for example, as 130370724 + 662596 = 11418^2 + 814^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131033294 and 131033303.

It is not an unprimeable number, because it can be changed into a prime (131033327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8697 + ... + 18376.

Almost surely, 2^131033320 is an apocalyptic number.

131033320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131033320 is an abundant number, since it is smaller than the sum of its proper divisors (193042460).

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

131033320 is a wasteful number, since it uses less digits than its factorization.

131033320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27106 (or 27091 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 131033320 is about 11446.9786406720. The cubic root of 131033320 is about 507.9183637184.

Adding to 131033320 its reverse (23330131), we get a palindrome (154363451).

The spelling of 131033320 in words is "one hundred thirty-one million, thirty-three thousand, three hundred twenty".