131488536381 has 16 divisors (see below), whose sum is σ = 175720857600. Its totient is φ = 87457698288.

The previous prime is 131488536353. The next prime is 131488536383. The reversal of 131488536381 is 183635884131.

It is not a de Polignac number, because 131488536381 - 2²¹ = 131486439229 is a prime.

It is a super-2 number, since 2×131488536381² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131488536383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12937980 + ... + 12948138.

It is an arithmetic number, because the mean of its divisors is an integer number (10982553600).

Almost surely, 2^131488536381 is an apocalyptic number.

It is an amenable number.

131488536381 is a deficient number, since it is larger than the sum of its proper divisors (44232321219).

131488536381 is a wasteful number, since it uses less digits than its factorization.

131488536381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19648.

The product of its digits is 1658880, while the sum is 51.

The spelling of 131488536381 in words is "one hundred thirty-one billion, four hundred eighty-eight million, five hundred thirty-six thousand, three hundred eighty-one".