131422111 has 4 divisors (see below), whose sum is σ = 131461000. Its totient is φ = 131383224.

The previous prime is 131422103. The next prime is 131422133. The reversal of 131422111 is 111224131.

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 131422111 - 2³ = 131422103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131420111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13836 + ... + 21313.

It is an arithmetic number, because the mean of its divisors is an integer number (32865250).

Almost surely, 2^131422111 is an apocalyptic number.

131422111 is a deficient number, since it is larger than the sum of its proper divisors (38889).

131422111 is an equidigital number, since it uses as much as digits as its factorization.

131422111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38888.

The product of its digits is 48, while the sum is 16.

The square root of 131422111 is about 11463.9483163524. The cubic root of 131422111 is about 508.4202185148.

Adding to 131422111 its reverse (111224131), we get a palindrome (242646242).

The spelling of 131422111 in words is "one hundred thirty-one million, four hundred twenty-two thousand, one hundred eleven".