131103224442045 has 20 divisors (see below), whose sum is σ = 235014669000540. Its totient is φ = 69921719702208.

The previous prime is 131103224442023. The next prime is 131103224442053. The reversal of 131103224442045 is 540244422301131.

131103224442045 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 0 + 3 + 2 + 2 + 444 + 204 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29167970944644 + 101935253497401 = 5400738^2 + 10096299^2 .

It is not a de Polignac number, because 131103224442045 - 2¹² = 131103224437949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 161855832240 + ... + 161855833049.

It is an arithmetic number, because the mean of its divisors is an integer number (11750733450027).

Almost surely, 2^{131103224442045} is an apocalyptic number.

131103224442045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131103224442045 is a deficient number, since it is larger than the sum of its proper divisors (103911444558495).

131103224442045 is an equidigital number, since it uses as much as digits as its factorization.

131103224442045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 323711665306 (or 323711665297 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 131103224442045 its reverse (540244422301131), we get a palindrome (671347646743176).

The spelling of 131103224442045 in words is "one hundred thirty-one trillion, one hundred three billion, two hundred twenty-four million, four hundred forty-two thousand, forty-five".