134220443231 has 6 divisors (see below), whose sum is σ = 156133985040. Its totient is φ = 115046094156.

The previous prime is 134220443221. The next prime is 134220443237. The reversal of 134220443231 is 132344022431.

It is not a de Polignac number, because 134220443231 - 2³⁰ = 133146701407 is a prime.

It is a super-2 number, since 2×134220443231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134220443194 and 134220443203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134220443237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1369596311 + ... + 1369596408.

It is an arithmetic number, because the mean of its divisors is an integer number (26022330840).

Almost surely, 2^134220443231 is an apocalyptic number.

134220443231 is a deficient number, since it is larger than the sum of its proper divisors (21913541809).

134220443231 is an equidigital number, since it uses as much as digits as its factorization.

134220443231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739192733 (or 2739192726 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 134220443231 its reverse (132344022431), we get a palindrome (266564465662).

The spelling of 134220443231 in words is "one hundred thirty-four billion, two hundred twenty million, four hundred forty-three thousand, two hundred thirty-one".