131512340534 has 16 divisors (see below), whose sum is σ = 202829638128. Its totient is φ = 63906488352.

The previous prime is 131512340473. The next prime is 131512340537. The reversal of 131512340534 is 435043215131.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131512340534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131512340537) 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, 940997 + ... + 1071680.

It is an arithmetic number, because the mean of its divisors is an integer number (12676852383).

Almost surely, 2^131512340534 is an apocalyptic number.

131512340534 is a deficient number, since it is larger than the sum of its proper divisors (71317297594).

131512340534 is a wasteful number, since it uses less digits than its factorization.

131512340534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2013599.

The product of its (nonzero) digits is 21600, while the sum is 32.

Adding to 131512340534 its reverse (435043215131), we get a palindrome (566555555665).

The spelling of 131512340534 in words is "one hundred thirty-one billion, five hundred twelve million, three hundred forty thousand, five hundred thirty-four".