131135203103131 has 4 divisors (see below), whose sum is σ = 134679397781632. Its totient is φ = 127591008424632.

The previous prime is 131135203103111. The next prime is 131135203103141. The reversal of 131135203103131 is 131301302531131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131135203103131 - 2¹³ = 131135203094939 is a prime.

It is a super-2 number, since 2×131135203103131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131135203103131.

It is not an unprimeable number, because it can be changed into a prime (131135203103111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1772097339195 + ... + 1772097339268.

It is an arithmetic number, because the mean of its divisors is an integer number (33669849445408).

Almost surely, 2^{131135203103131} is an apocalyptic number.

131135203103131 is a deficient number, since it is larger than the sum of its proper divisors (3544194678501).

131135203103131 is an equidigital number, since it uses as much as digits as its factorization.

131135203103131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3544194678500.

The product of its (nonzero) digits is 2430, while the sum is 28.

Adding to 131135203103131 its reverse (131301302531131), we get a palindrome (262436505634262).

The spelling of 131135203103131 in words is "one hundred thirty-one trillion, one hundred thirty-five billion, two hundred three million, one hundred three thousand, one hundred thirty-one".