131521550313 has 8 divisors (see below), whose sum is σ = 176193167776. Its totient is φ = 87265483200.

The previous prime is 131521550299. The next prime is 131521550339. The reversal of 131521550313 is 313055125131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131521550313 - 2⁴ = 131521550297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131521550353) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103886848 + ... + 103888113.

It is an arithmetic number, because the mean of its divisors is an integer number (22024145972).

Almost surely, 2^131521550313 is an apocalyptic number.

It is an amenable number.

131521550313 is a deficient number, since it is larger than the sum of its proper divisors (44671617463).

131521550313 is a wasteful number, since it uses less digits than its factorization.

131521550313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207775175.

The product of its (nonzero) digits is 6750, while the sum is 30.

Adding to 131521550313 its reverse (313055125131), we get a palindrome (444576675444).

The spelling of 131521550313 in words is "one hundred thirty-one billion, five hundred twenty-one million, five hundred fifty thousand, three hundred thirteen".