131313512 has 32 divisors (see below), whose sum is σ = 269615520. Its totient is φ = 59461440.

The previous prime is 131313493. The next prime is 131313521. The reversal of 131313512 is 215313131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21683 + ... + 27069.

It is an arithmetic number, because the mean of its divisors is an integer number (8425485).

Almost surely, 2^131313512 is an apocalyptic number.

It is an amenable number.

131313512 is an abundant number, since it is smaller than the sum of its proper divisors (138302008).

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

131313512 is a wasteful number, since it uses less digits than its factorization.

131313512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5681 (or 5677 counting only the distinct ones).

The product of its digits is 270, while the sum is 20.

The square root of 131313512 is about 11459.2107930695. The cubic root of 131313512 is about 508.2801377163.

Adding to 131313512 its reverse (215313131), we get a palindrome (346626643).

The spelling of 131313512 in words is "one hundred thirty-one million, three hundred thirteen thousand, five hundred twelve".