131334534423 has 12 divisors (see below), whose sum is σ = 199689935640. Its totient is φ = 82948126896.

The previous prime is 131334534391. The next prime is 131334534431. The reversal of 131334534423 is 324435433131.

131334534423 is a `hidden beast` number, since 13 + 133 + 453 + 44 + 23 = 666.

It is not a de Polignac number, because 131334534423 - 2⁵ = 131334534391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131334534493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 384018936 + ... + 384019277.

It is an arithmetic number, because the mean of its divisors is an integer number (16640827970).

Almost surely, 2^131334534423 is an apocalyptic number.

131334534423 is a deficient number, since it is larger than the sum of its proper divisors (68355401217).

131334534423 is a wasteful number, since it uses less digits than its factorization.

131334534423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768038238 (or 768038235 counting only the distinct ones).

The product of its digits is 155520, while the sum is 36.

Adding to 131334534423 its reverse (324435433131), we get a palindrome (455769967554).

The spelling of 131334534423 in words is "one hundred thirty-one billion, three hundred thirty-four million, five hundred thirty-four thousand, four hundred twenty-three".