131103333420205 has 16 divisors (see below), whose sum is σ = 157461777673200. Its totient is φ = 104790854891520.

The previous prime is 131103333420121. The next prime is 131103333420221. The reversal of 131103333420205 is 502024333301131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5527149278121 + 125576184142084 = 2350989^2 + 11206078^2 .

It is not a de Polignac number, because 131103333420205 - 2²¹ = 131103331323053 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 15 ways as a sum of consecutive naturals, for example, 23842401 + ... + 28821289.

It is an arithmetic number, because the mean of its divisors is an integer number (9841361104575).

Almost surely, 2^{131103333420205} is an apocalyptic number.

It is an amenable number.

131103333420205 is a deficient number, since it is larger than the sum of its proper divisors (26358444252995).

131103333420205 is a wasteful number, since it uses less digits than its factorization.

131103333420205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4983504.

The product of its (nonzero) digits is 19440, while the sum is 31.

Adding to 131103333420205 its reverse (502024333301131), we get a palindrome (633127666721336).

The spelling of 131103333420205 in words is "one hundred thirty-one trillion, one hundred three billion, three hundred thirty-three million, four hundred twenty thousand, two hundred five".