134213105523 has 32 divisors (see below), whose sum is σ = 206490746880. Its totient is φ = 75952824480.

The previous prime is 134213105497. The next prime is 134213105569. The reversal of 134213105523 is 325501312431.

It is not a de Polignac number, because 134213105523 - 2⁵ = 134213105491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134213105623) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9293118 + ... + 9307548.

It is an arithmetic number, because the mean of its divisors is an integer number (6452835840).

Almost surely, 2^134213105523 is an apocalyptic number.

134213105523 is a deficient number, since it is larger than the sum of its proper divisors (72277641357).

134213105523 is a wasteful number, since it uses less digits than its factorization.

134213105523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18687.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 134213105523 its reverse (325501312431), we get a palindrome (459714417954).

The spelling of 134213105523 in words is "one hundred thirty-four billion, two hundred thirteen million, one hundred five thousand, five hundred twenty-three".