131105211015 has 8 divisors (see below), whose sum is σ = 209768337648. Its totient is φ = 69922779200.

The previous prime is 131105210987. The next prime is 131105211019. The reversal of 131105211015 is 510112501131.

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

It is not a de Polignac number, because 131105211015 - 2¹⁵ = 131105178247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131105210982 and 131105211000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131105211019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4370173686 + ... + 4370173715.

It is an arithmetic number, because the mean of its divisors is an integer number (26221042206).

Almost surely, 2^131105211015 is an apocalyptic number.

131105211015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131105211015 is a deficient number, since it is larger than the sum of its proper divisors (78663126633).

131105211015 is an equidigital number, since it uses as much as digits as its factorization.

131105211015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8740347409.

The product of its (nonzero) digits is 150, while the sum is 21.

Adding to 131105211015 its reverse (510112501131), we get a palindrome (641217712146).

The spelling of 131105211015 in words is "one hundred thirty-one billion, one hundred five million, two hundred eleven thousand, fifteen".