131201113 has 4 divisors (see below), whose sum is σ = 133049088. Its totient is φ = 129353140.

The previous prime is 131201101. The next prime is 131201143. The reversal of 131201113 is 311102131.

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.

It is a cyclic number.

It is not a de Polignac number, because 131201113 - 2¹⁷ = 131070041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131201093 and 131201102.

It is not an unprimeable number, because it can be changed into a prime (131201143) 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, 923881 + ... + 924022.

It is an arithmetic number, because the mean of its divisors is an integer number (33262272).

Almost surely, 2^131201113 is an apocalyptic number.

It is an amenable number.

131201113 is a deficient number, since it is larger than the sum of its proper divisors (1847975).

131201113 is an equidigital number, since it uses as much as digits as its factorization.

131201113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847974.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 131201113 is about 11454.3054350755. The cubic root of 131201113 is about 508.1350739767.

Adding to 131201113 its reverse (311102131), we get a palindrome (442303244).

The spelling of 131201113 in words is "one hundred thirty-one million, two hundred one thousand, one hundred thirteen".