131213201113 has 4 divisors (see below), whose sum is σ = 131214247888. Its totient is φ = 131212154340.

The previous prime is 131213201071. The next prime is 131213201137. The reversal of 131213201113 is 311102312131.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 131213201113 - 2²⁵ = 131179646681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131213201213) 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, 304983 + ... + 596188.

It is an arithmetic number, because the mean of its divisors is an integer number (32803561972).

Almost surely, 2^131213201113 is an apocalyptic number.

It is an amenable number.

131213201113 is a deficient number, since it is larger than the sum of its proper divisors (1046775).

131213201113 is an equidigital number, since it uses as much as digits as its factorization.

131213201113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046774.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 131213201113 its reverse (311102312131), we get a palindrome (442315513244).

The spelling of 131213201113 in words is "one hundred thirty-one billion, two hundred thirteen million, two hundred one thousand, one hundred thirteen".