131330051531 has 8 divisors (see below), whose sum is σ = 150217943040. Its totient is φ = 112473773928.

The previous prime is 131330051521. The next prime is 131330051539. The reversal of 131330051531 is 135150033131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131330051531 is a prime.

It is a super-2 number, since 2×131330051531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131330051531.

It is not an unprimeable number, because it can be changed into a prime (131330051539) 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, 7894571 + ... + 7911188.

It is an arithmetic number, because the mean of its divisors is an integer number (18777242880).

Almost surely, 2^131330051531 is an apocalyptic number.

131330051531 is a deficient number, since it is larger than the sum of its proper divisors (18887891509).

131330051531 is a wasteful number, since it uses less digits than its factorization.

131330051531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15806953.

The product of its (nonzero) digits is 2025, while the sum is 26.

Adding to 131330051531 its reverse (135150033131), we get a palindrome (266480084662).

The spelling of 131330051531 in words is "one hundred thirty-one billion, three hundred thirty million, fifty-one thousand, five hundred thirty-one".