131434111 has 2 divisors, whose sum is σ = 131434112. Its totient is φ = 131434110.

The previous prime is 131434109. The next prime is 131434129. The reversal of 131434111 is 111434131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131434111 - 2¹ = 131434109 is a prime.

Together with 131434109, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131404111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65717055 + 65717056.

It is an arithmetic number, because the mean of its divisors is an integer number (65717056).

Almost surely, 2^131434111 is an apocalyptic number.

131434111 is a deficient number, since it is larger than the sum of its proper divisors (1).

131434111 is an equidigital number, since it uses as much as digits as its factorization.

131434111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 131434111 is about 11464.4716842949. The cubic root of 131434111 is about 508.4356924633.

Adding to 131434111 its reverse (111434131), we get a palindrome (242868242).

The spelling of 131434111 in words is "one hundred thirty-one million, four hundred thirty-four thousand, one hundred eleven".