131131031113 has 4 divisors (see below), whose sum is σ = 131132626560. Its totient is φ = 131129435668.

The previous prime is 131131030999. The next prime is 131131031183. The reversal of 131131031113 is 311130131131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 311130131131 = 37 ⋅8408922463.

It is a cyclic number.

It is not a de Polignac number, because 131131031113 - 2⁹ = 131131030601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131131031183) 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, 667333 + ... + 841186.

It is an arithmetic number, because the mean of its divisors is an integer number (32783156640).

Almost surely, 2^131131031113 is an apocalyptic number.

It is an amenable number.

131131031113 is a deficient number, since it is larger than the sum of its proper divisors (1595447).

131131031113 is an equidigital number, since it uses as much as digits as its factorization.

131131031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595446.

The product of its (nonzero) digits is 81, while the sum is 19.

Adding to 131131031113 its reverse (311130131131), we get a palindrome (442261162244).

The spelling of 131131031113 in words is "one hundred thirty-one billion, one hundred thirty-one million, thirty-one thousand, one hundred thirteen".