131431230134111 has 4 divisors (see below), whose sum is σ = 134487770369832. Its totient is φ = 128374689898392.

The previous prime is 131431230134053. The next prime is 131431230134119. The reversal of 131431230134111 is 111431032134131.

It is a happy number.

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 131431230134111 - 2³⁴ = 131414050264927 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 (131431230134119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1528270117796 + ... + 1528270117881.

It is an arithmetic number, because the mean of its divisors is an integer number (33621942592458).

Almost surely, 2^{131431230134111} is an apocalyptic number.

131431230134111 is a deficient number, since it is larger than the sum of its proper divisors (3056540235721).

131431230134111 is an equidigital number, since it uses as much as digits as its factorization.

131431230134111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056540235720.

The product of its (nonzero) digits is 2592, while the sum is 29.

Adding to 131431230134111 its reverse (111431032134131), we get a palindrome (242862262268242).

The spelling of 131431230134111 in words is "one hundred thirty-one trillion, four hundred thirty-one billion, two hundred thirty million, one hundred thirty-four thousand, one hundred eleven".