131241533155 has 4 divisors (see below), whose sum is σ = 157489839792. Its totient is φ = 104993226520.

The previous prime is 131241533141. The next prime is 131241533177. The reversal of 131241533155 is 551335142131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551335142131 = 4523 ⋅121895897.

It is not a de Polignac number, because 131241533155 - 2³⁵ = 96881794787 is a prime.

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 131241533155.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13124153311 + ... + 13124153320.

It is an arithmetic number, because the mean of its divisors is an integer number (39372459948).

Almost surely, 2^131241533155 is an apocalyptic number.

131241533155 is a deficient number, since it is larger than the sum of its proper divisors (26248306637).

131241533155 is an equidigital number, since it uses as much as digits as its factorization.

131241533155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26248306636.

The product of its digits is 27000, while the sum is 34.

Adding to 131241533155 its reverse (551335142131), we get a palindrome (682576675286).

The spelling of 131241533155 in words is "one hundred thirty-one billion, two hundred forty-one million, five hundred thirty-three thousand, one hundred fifty-five".