131111516320 has 48 divisors (see below), whose sum is σ = 314828865288. Its totient is φ = 51584855040.

The previous prime is 131111516317. The next prime is 131111516321. The reversal of 131111516320 is 23615111131.

It can be written as a sum of positive squares in 4 ways, for example, as 42966656656 + 88144859664 = 207284^2 + 296892^2 .

It is not an unprimeable number, because it can be changed into a prime (131111516321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6707019 + ... + 6726538.

Almost surely, 2^131111516320 is an apocalyptic number.

131111516320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131111516320 is an abundant number, since it is smaller than the sum of its proper divisors (183717348968).

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

131111516320 is a wasteful number, since it uses less digits than its factorization.

131111516320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13433633 (or 13433625 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

Adding to 131111516320 its reverse (23615111131), we get a palindrome (154726627451).

The spelling of 131111516320 in words is "one hundred thirty-one billion, one hundred eleven million, five hundred sixteen thousand, three hundred twenty".