134234401231 has 4 divisors (see below), whose sum is σ = 153410744272. Its totient is φ = 115058058192.

The previous prime is 134234401219. The next prime is 134234401241. The reversal of 134234401231 is 132104432431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 134234401231 - 2¹¹ = 134234399183 is a prime.

It is a super-2 number, since 2×134234401231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134234401231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134234401241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9588171510 + ... + 9588171523.

It is an arithmetic number, because the mean of its divisors is an integer number (38352686068).

Almost surely, 2^134234401231 is an apocalyptic number.

134234401231 is a deficient number, since it is larger than the sum of its proper divisors (19176343041).

134234401231 is an equidigital number, since it uses as much as digits as its factorization.

134234401231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19176343040.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 134234401231 its reverse (132104432431), we get a palindrome (266338833662).

The spelling of 134234401231 in words is "one hundred thirty-four billion, two hundred thirty-four million, four hundred one thousand, two hundred thirty-one".