131100320 has 48 divisors (see below), whose sum is σ = 333554760. Its totient is φ = 48405504.

The previous prime is 131100313. The next prime is 131100341. The reversal of 131100320 is 23001131.

It can be written as a sum of positive squares in 4 ways, for example, as 115004176 + 16096144 = 10724^2 + 4012^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29435 + ... + 33594.

Almost surely, 2^131100320 is an apocalyptic number.

131100320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131100320 is an abundant number, since it is smaller than the sum of its proper divisors (202454440).

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

131100320 is a wasteful number, since it uses less digits than its factorization.

131100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63057 (or 63049 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 131100320 is about 11449.9048030977. The cubic root of 131100320 is about 508.0049186289.

Adding to 131100320 its reverse (23001131), we get a palindrome (154101451).

The spelling of 131100320 in words is "one hundred thirty-one million, one hundred thousand, three hundred twenty".