131131202121103 has 16 divisors (see below), whose sum is σ = 137112542159616. Its totient is φ = 125173329937920.

The previous prime is 131131202121091. The next prime is 131131202121109. The reversal of 131131202121103 is 301121202131131.

It is a cyclic number.

It is not a de Polignac number, because 131131202121103 - 2²¹ = 131131200023951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131131202121109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40964548 + ... + 44049478.

It is an arithmetic number, because the mean of its divisors is an integer number (8569533884976).

Almost surely, 2^{131131202121103} is an apocalyptic number.

131131202121103 is a deficient number, since it is larger than the sum of its proper divisors (5981340038513).

131131202121103 is a wasteful number, since it uses less digits than its factorization.

131131202121103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3088734.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 131131202121103 its reverse (301121202131131), we get a palindrome (432252404252234).

The spelling of 131131202121103 in words is "one hundred thirty-one trillion, one hundred thirty-one billion, two hundred two million, one hundred twenty-one thousand, one hundred three".