131101314243205 has 32 divisors (see below), whose sum is σ = 165785141007360. Its totient is φ = 99250967278080.

The previous prime is 131101314243143. The next prime is 131101314243209. The reversal of 131101314243205 is 502342413101131.

It is a happy number.

It is not a de Polignac number, because 131101314243205 - 2¹³ = 131101314235013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131101314243209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 318514297 + ... + 318925633.

It is an arithmetic number, because the mean of its divisors is an integer number (5180785656480).

Almost surely, 2^{131101314243205} is an apocalyptic number.

It is an amenable number.

131101314243205 is a deficient number, since it is larger than the sum of its proper divisors (34683826764155).

131101314243205 is a wasteful number, since it uses less digits than its factorization.

131101314243205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415069.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 131101314243205 its reverse (502342413101131), we get a palindrome (633443727344336).

The spelling of 131101314243205 in words is "one hundred thirty-one trillion, one hundred one billion, three hundred fourteen million, two hundred forty-three thousand, two hundred five".